/* * Copyright (C) 2003, The Regents of the University of California. * Produced at the Lawrence Livermore National Laboratory. * Written by Christopher J. Morrone , * Bill Loewe , Tyce McLarty , * and Ryan Kroiss . * All rights reserved. * UCRL-CODE-155800 * * Please read the COPYRIGHT file. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (as published by * the Free Software Foundation) version 2, dated June 1991. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * terms and conditions of the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * CVS info: * $RCSfile: mdtest.c,v $ * $Revision: 1.4 $ * $Date: 2013/11/27 17:05:31 $ * $Author: brettkettering $ */ #define _XOPEN_SOURCE 700 #include #include #include #include #include #include #include #include #include "option.h" #include "utilities.h" #if HAVE_SYS_PARAM_H #include #endif #if HAVE_SYS_MOUNT_H #include #endif #if HAVE_SYS_STATFS_H #include #endif #if HAVE_SYS_STATVFS_H #include #endif #include #include #if HAVE_STRINGS_H #include #endif #include #include #include #include #include #include "aiori.h" #include "ior.h" #include "mdtest.h" #include #define FILEMODE S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH #define DIRMODE S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IWGRP|S_IXGRP|S_IROTH|S_IXOTH #define RELEASE_VERS "1.9.3" #define TEST_DIR "#test-dir" #define ITEM_COUNT 25000 #define LLU "%lu" static int size; static uint64_t *rand_array; static char testdir[MAX_PATHLEN]; static char testdirpath[MAX_PATHLEN]; static char base_tree_name[MAX_PATHLEN]; static char **filenames; static char hostname[MAX_PATHLEN]; static char mk_name[MAX_PATHLEN]; static char stat_name[MAX_PATHLEN]; static char read_name[MAX_PATHLEN]; static char rm_name[MAX_PATHLEN]; static char unique_mk_dir[MAX_PATHLEN]; static char unique_chdir_dir[MAX_PATHLEN]; static char unique_stat_dir[MAX_PATHLEN]; static char unique_read_dir[MAX_PATHLEN]; static char unique_rm_dir[MAX_PATHLEN]; static char unique_rm_uni_dir[MAX_PATHLEN]; static char *write_buffer; static char *read_buffer; static char *stoneWallingStatusFile; static int barriers; static int create_only; static int stat_only; static int read_only; static int remove_only; static int leaf_only; static unsigned branch_factor; static int depth; /* * This is likely a small value, but it's sometimes computed by * branch_factor^(depth+1), so we'll make it a larger variable, * just in case. */ static uint64_t num_dirs_in_tree; /* * As we start moving towards Exascale, we could have billions * of files in a directory. Make room for that possibility with * a larger variable. */ static uint64_t items; static uint64_t items_per_dir; static int directory_loops; static int print_time; static int random_seed; static int shared_file; static int files_only; static int dirs_only; static int pre_delay; static int unique_dir_per_task; static int time_unique_dir_overhead; static int throttle; static int collective_creates; static size_t write_bytes; static int stone_wall_timer_seconds; static size_t read_bytes; static int sync_file; static int path_count; static int nstride; /* neighbor stride */ static mdtest_results_t * summary_table; static pid_t pid; static uid_t uid; /* just use the POSIX backend for now */ static const char *backend_name = "POSIX"; static const ior_aiori_t *backend; static IOR_param_t param; /* This structure describes the processing status for stonewalling */ typedef struct{ double start_time; int stone_wall_timer_seconds; uint64_t items_start; uint64_t items_done; uint64_t items_per_dir; } rank_progress_t; #define CHECK_STONE_WALL(p) (((p)->stone_wall_timer_seconds != 0) && ((GetTimeStamp() - (p)->start_time) > (p)->stone_wall_timer_seconds)) /* for making/removing unique directory && stating/deleting subdirectory */ enum {MK_UNI_DIR, STAT_SUB_DIR, READ_SUB_DIR, RM_SUB_DIR, RM_UNI_DIR}; void offset_timers(double * t, int tcount) { double toffset; int i; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering offset_timers...\n" ); fflush( out_logfile ); } toffset = MPI_Wtime() - t[tcount]; for (i = 0; i < tcount+1; i++) { t[i] += toffset; } } void parse_dirpath(char *dirpath_arg) { char * tmp, * token; char delimiter_string[3] = { '@', '\n', '\0' }; int i = 0; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering parse_dirpath...\n" ); fflush( out_logfile ); } tmp = dirpath_arg; if (* tmp != '\0') path_count++; while (* tmp != '\0') { if (* tmp == '@') { path_count++; } tmp++; } filenames = (char **)malloc(path_count * sizeof(char **)); if (filenames == NULL) { FAIL("out of memory"); } token = strtok(dirpath_arg, delimiter_string); while (token != NULL) { filenames[i] = token; token = strtok(NULL, delimiter_string); i++; } } static void prep_testdir(int j, int dir_iter){ int pos = sprintf(testdir, "%s", testdirpath); if ( testdir[strlen( testdir ) - 1] != '/' ) { pos += sprintf(& testdir[pos], "/"); } pos += sprintf(& testdir[pos], "%s", TEST_DIR); pos += sprintf(& testdir[pos], ".%d-%d", j, dir_iter); } /* * This function copies the unique directory name for a given option to * the "to" parameter. Some memory must be allocated to the "to" parameter. */ void unique_dir_access(int opt, char *to) { if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering unique_dir_access...\n" ); fflush( out_logfile ); } if (opt == MK_UNI_DIR) { MPI_Barrier(testComm); sprintf( to, "%s/%s", testdir, unique_chdir_dir ); } else if (opt == STAT_SUB_DIR) { sprintf( to, "%s/%s", testdir, unique_stat_dir ); } else if (opt == READ_SUB_DIR) { sprintf( to, "%s/%s", testdir, unique_read_dir ); } else if (opt == RM_SUB_DIR) { sprintf( to, "%s/%s", testdir, unique_rm_dir ); } else if (opt == RM_UNI_DIR) { sprintf( to, "%s/%s", testdir, unique_rm_uni_dir ); } } static void create_remove_dirs (const char *path, bool create, uint64_t itemNum) { char curr_item[MAX_PATHLEN]; const char *operation = create ? "create" : "remove"; if (( rank == 0 ) && ( verbose >= 3 ) && (itemNum % ITEM_COUNT==0 && (itemNum != 0))) { fprintf(out_logfile, "V-3: %s dir: "LLU"\n", operation, itemNum); fflush(out_logfile); } //create dirs sprintf(curr_item, "%s/dir.%s%" PRIu64, path, create ? mk_name : rm_name, itemNum); if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper (dirs %s): curr_item is \"%s\"\n", operation, curr_item); fflush(out_logfile); } if (create) { if (backend->mkdir(curr_item, DIRMODE, ¶m) == -1) { FAIL("unable to create directory"); } } else { if (backend->rmdir(curr_item, ¶m) == -1) { FAIL("unable to remove directory"); } } } static void remove_file (const char *path, uint64_t itemNum) { char curr_item[MAX_PATHLEN]; if (( rank == 0 ) && ( verbose >= 3 ) && (itemNum % ITEM_COUNT==0 && (itemNum != 0))) { fprintf(out_logfile, "V-3: remove file: "LLU"\n", itemNum); fflush(out_logfile); } //remove files sprintf(curr_item, "%s/file.%s"LLU"", path, rm_name, itemNum); if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper (non-dirs remove): curr_item is \"%s\"\n", curr_item); fflush(out_logfile); } if (!(shared_file && rank != 0)) { backend->delete (curr_item, ¶m); } } static void create_file (const char *path, uint64_t itemNum) { char curr_item[MAX_PATHLEN]; void *aiori_fh; if (( rank == 0 ) && ( verbose >= 3 ) && (itemNum % ITEM_COUNT==0 && (itemNum != 0))) { fprintf(out_logfile, "V-3: create file: "LLU"\n", itemNum); fflush(out_logfile); } //create files sprintf(curr_item, "%s/file.%s"LLU"", path, mk_name, itemNum); if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper (non-dirs create): curr_item is \"%s\"\n", curr_item); fflush(out_logfile); } if (collective_creates) { param.openFlags = IOR_WRONLY; if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper (collective): open...\n" ); fflush( out_logfile ); } aiori_fh = backend->open (curr_item, ¶m); if (NULL == aiori_fh) { FAIL("unable to open file"); } /* * !collective_creates */ } else { param.openFlags = IOR_CREAT | IOR_WRONLY; param.filePerProc = !shared_file; if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper (non-collective, shared): open...\n" ); fflush( out_logfile ); } aiori_fh = backend->create (curr_item, ¶m); if (NULL == aiori_fh) { FAIL("unable to create file"); } } if (write_bytes > 0) { if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper: write...\n" ); fflush( out_logfile ); } /* * According to Bill Loewe, writes are only done one time, so they are always at * offset 0 (zero). */ param.offset = 0; param.fsyncPerWrite = sync_file; if ( write_bytes != (size_t) backend->xfer (WRITE, aiori_fh, (IOR_size_t *) write_buffer, write_bytes, ¶m)) { FAIL("unable to write file"); } } if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items_helper: close...\n" ); fflush( out_logfile ); } backend->close (aiori_fh, ¶m); } /* helper for creating/removing items */ void create_remove_items_helper(const int dirs, const int create, const char *path, uint64_t itemNum, rank_progress_t * progress) { if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering create_remove_items_helper...\n" ); fflush( out_logfile ); } for (uint64_t i = progress->items_start; i < progress->items_per_dir ; ++i) { if (!dirs) { if (create) { create_file (path, itemNum + i); } else { remove_file (path, itemNum + i); } } else { create_remove_dirs (path, create, itemNum + i); } if(CHECK_STONE_WALL(progress)){ progress->items_done = i + 1; return; } } progress->items_done = progress->items_per_dir; } /* helper function to do collective operations */ void collective_helper(const int dirs, const int create, const char* path, uint64_t itemNum, rank_progress_t * progress) { char curr_item[MAX_PATHLEN]; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering collective_helper...\n" ); fflush( out_logfile ); } for (uint64_t i = progress->items_start ; i < progress->items_per_dir ; ++i) { if (dirs) { create_remove_dirs (path, create, itemNum + i); continue; } sprintf(curr_item, "%s/file.%s"LLU"", path, create ? mk_name : rm_name, itemNum+i); if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create file: %s\n", curr_item); fflush(out_logfile); } if (create) { void *aiori_fh; //create files param.openFlags = IOR_WRONLY | IOR_CREAT; aiori_fh = backend->create (curr_item, ¶m); if (NULL == aiori_fh) { FAIL("unable to create file"); } backend->close (aiori_fh, ¶m); } else if (!(shared_file && rank != 0)) { //remove files backend->delete (curr_item, ¶m); } if(CHECK_STONE_WALL(progress)){ progress->items_done = i + 1; return; } } progress->items_done = progress->items_per_dir; } /* recusive function to create and remove files/directories from the directory tree */ void create_remove_items(int currDepth, const int dirs, const int create, const int collective, const char *path, uint64_t dirNum, rank_progress_t * progress) { unsigned i; char dir[MAX_PATHLEN]; char temp_path[MAX_PATHLEN]; unsigned long long currDir = dirNum; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering create_remove_items, currDepth = %d...\n", currDepth ); fflush( out_logfile ); } memset(dir, 0, MAX_PATHLEN); strcpy(temp_path, path); if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: create_remove_items (start): temp_path is \"%s\"\n", temp_path ); fflush(out_logfile); } if (currDepth == 0) { /* create items at this depth */ if (!leaf_only || (depth == 0 && leaf_only)) { if (collective) { collective_helper(dirs, create, temp_path, 0, progress); } else { create_remove_items_helper(dirs, create, temp_path, 0, progress); } } if (depth > 0) { create_remove_items(++currDepth, dirs, create, collective, temp_path, ++dirNum, progress); } } else if (currDepth <= depth) { /* iterate through the branches */ for (i=0; i= 3) { fprintf(out_logfile, "V-3: create_remove_items (for loop): temp_path is \"%s\"\n", temp_path ); fflush(out_logfile); } /* create the items in this branch */ if (!leaf_only || (leaf_only && currDepth == depth)) { if (collective) { collective_helper(dirs, create, temp_path, currDir*items_per_dir, progress); } else { create_remove_items_helper(dirs, create, temp_path, currDir*items_per_dir, progress); } } /* make the recursive call for the next level below this branch */ create_remove_items( ++currDepth, dirs, create, collective, temp_path, ( currDir * ( unsigned long long )branch_factor ) + 1, progress ); currDepth--; /* reset the path */ strcpy(temp_path, path); currDir++; } } } /* stats all of the items created as specified by the input parameters */ void mdtest_stat(const int random, const int dirs, const long dir_iter, const char *path, rank_progress_t * progress) { struct stat buf; uint64_t parent_dir, item_num = 0; char item[MAX_PATHLEN], temp[MAX_PATHLEN]; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering mdtest_stat...\n" ); fflush( out_logfile ); } uint64_t stop_items = items; if( directory_loops != 1 ){ stop_items = items_per_dir; } /* iterate over all of the item IDs */ for (uint64_t i = 0 ; i < stop_items ; ++i) { /* * It doesn't make sense to pass the address of the array because that would * be like passing char **. Tested it on a Cray and it seems to work either * way, but it seems that it is correct without the "&". * memset(&item, 0, MAX_PATHLEN); */ memset(item, 0, MAX_PATHLEN); memset(temp, 0, MAX_PATHLEN); /* determine the item number to stat */ if (random) { item_num = rand_array[i]; } else { item_num = i; } /* make adjustments if in leaf only mode*/ if (leaf_only) { item_num += items_per_dir * (num_dirs_in_tree - (uint64_t) pow( branch_factor, depth )); } /* create name of file/dir to stat */ if (dirs) { if (rank == 0 && verbose >= 3 && (i%ITEM_COUNT == 0) && (i != 0)) { fprintf(out_logfile, "V-3: stat dir: "LLU"\n", i); fflush(out_logfile); } sprintf(item, "dir.%s"LLU"", stat_name, item_num); } else { if (rank == 0 && verbose >= 3 && (i%ITEM_COUNT == 0) && (i != 0)) { fprintf(out_logfile, "V-3: stat file: "LLU"\n", i); fflush(out_logfile); } sprintf(item, "file.%s"LLU"", stat_name, item_num); } /* determine the path to the file/dir to be stat'ed */ parent_dir = item_num / items_per_dir; if (parent_dir > 0) { //item is not in tree's root directory /* prepend parent directory to item's path */ sprintf(temp, "%s."LLU"/%s", base_tree_name, parent_dir, item); strcpy(item, temp); //still not at the tree's root dir while (parent_dir > branch_factor) { parent_dir = (uint64_t) ((parent_dir-1) / branch_factor); sprintf(temp, "%s."LLU"/%s", base_tree_name, parent_dir, item); strcpy(item, temp); } } /* Now get item to have the full path */ sprintf( temp, "%s/%s", path, item ); strcpy( item, temp ); /* below temp used to be hiername */ if (rank == 0 && verbose >= 3) { if (dirs) { fprintf(out_logfile, "V-3: mdtest_stat dir : %s\n", item); } else { fprintf(out_logfile, "V-3: mdtest_stat file: %s\n", item); } fflush(out_logfile); } if (-1 == backend->stat (item, &buf, ¶m)) { if (dirs) { if ( verbose >= 3 ) { fprintf( out_logfile, "V-3: Stat'ing directory \"%s\"\n", item ); fflush( out_logfile ); } FAIL("unable to stat directory"); } else { if ( verbose >= 3 ) { fprintf( out_logfile, "V-3: Stat'ing file \"%s\"\n", item ); fflush( out_logfile ); } FAIL("unable to stat file"); } } } } /* reads all of the items created as specified by the input parameters */ void mdtest_read(int random, int dirs, const long dir_iter, char *path) { uint64_t parent_dir, item_num = 0; char item[MAX_PATHLEN], temp[MAX_PATHLEN]; void *aiori_fh; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering mdtest_read...\n" ); fflush( out_logfile ); } /* allocate read buffer */ if (read_bytes > 0) { read_buffer = (char *)malloc(read_bytes); if (read_buffer == NULL) { FAIL("out of memory"); } } uint64_t stop_items = items; if( directory_loops != 1 ){ stop_items = items_per_dir; } /* iterate over all of the item IDs */ for (uint64_t i = 0 ; i < stop_items ; ++i) { /* * It doesn't make sense to pass the address of the array because that would * be like passing char **. Tested it on a Cray and it seems to work either * way, but it seems that it is correct without the "&". * * NTH: Both are technically correct in C. * * memset(&item, 0, MAX_PATHLEN); */ memset(item, 0, MAX_PATHLEN); memset(temp, 0, MAX_PATHLEN); /* determine the item number to read */ if (random) { item_num = rand_array[i]; } else { item_num = i; } /* make adjustments if in leaf only mode*/ if (leaf_only) { item_num += items_per_dir * (num_dirs_in_tree - (uint64_t) pow (branch_factor, depth)); } /* create name of file to read */ if (!dirs) { if (rank == 0 && verbose >= 3 && (i%ITEM_COUNT == 0) && (i != 0)) { fprintf(out_logfile, "V-3: read file: "LLU"\n", i); fflush(out_logfile); } sprintf(item, "file.%s"LLU"", read_name, item_num); } /* determine the path to the file/dir to be read'ed */ parent_dir = item_num / items_per_dir; if (parent_dir > 0) { //item is not in tree's root directory /* prepend parent directory to item's path */ sprintf(temp, "%s."LLU"/%s", base_tree_name, parent_dir, item); strcpy(item, temp); /* still not at the tree's root dir */ while (parent_dir > branch_factor) { parent_dir = (unsigned long long) ((parent_dir-1) / branch_factor); sprintf(temp, "%s."LLU"/%s", base_tree_name, parent_dir, item); strcpy(item, temp); } } /* Now get item to have the full path */ sprintf( temp, "%s/%s", path, item ); strcpy( item, temp ); /* below temp used to be hiername */ if (rank == 0 && verbose >= 3) { if (!dirs) { fprintf(out_logfile, "V-3: mdtest_read file: %s\n", item); } fflush(out_logfile); } /* open file for reading */ param.openFlags = O_RDONLY; aiori_fh = backend->open (item, ¶m); if (NULL == aiori_fh) { FAIL("unable to open file"); } /* read file */ if (read_bytes > 0) { if (read_bytes != (size_t) backend->xfer (READ, aiori_fh, (IOR_size_t *) read_buffer, read_bytes, ¶m)) { FAIL("unable to read file"); } } /* close file */ backend->close (aiori_fh, ¶m); } } /* This method should be called by rank 0. It subsequently does all of the creates and removes for the other ranks */ void collective_create_remove(const int create, const int dirs, const int ntasks, const char *path, rank_progress_t * progress) { char temp[MAX_PATHLEN]; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering collective_create_remove...\n" ); fflush( out_logfile ); } /* rank 0 does all of the creates and removes for all of the ranks */ for (int i = 0 ; i < ntasks ; ++i) { memset(temp, 0, MAX_PATHLEN); strcpy(temp, testdir); strcat(temp, "/"); /* set the base tree name appropriately */ if (unique_dir_per_task) { sprintf(base_tree_name, "mdtest_tree.%d", i); } else { sprintf(base_tree_name, "mdtest_tree"); } /* Setup to do I/O to the appropriate test dir */ strcat(temp, base_tree_name); strcat(temp, ".0"); /* set all item names appropriately */ if (!shared_file) { sprintf(mk_name, "mdtest.%d.", (i+(0*nstride))%ntasks); sprintf(stat_name, "mdtest.%d.", (i+(1*nstride))%ntasks); sprintf(read_name, "mdtest.%d.", (i+(2*nstride))%ntasks); sprintf(rm_name, "mdtest.%d.", (i+(3*nstride))%ntasks); } if (unique_dir_per_task) { sprintf(unique_mk_dir, "%s/mdtest_tree.%d.0", testdir, (i+(0*nstride))%ntasks); sprintf(unique_chdir_dir, "%s/mdtest_tree.%d.0", testdir, (i+(1*nstride))%ntasks); sprintf(unique_stat_dir, "%s/mdtest_tree.%d.0", testdir, (i+(2*nstride))%ntasks); sprintf(unique_read_dir, "%s/mdtest_tree.%d.0", testdir, (i+(3*nstride))%ntasks); sprintf(unique_rm_dir, "%s/mdtest_tree.%d.0", testdir, (i+(4*nstride))%ntasks); sprintf(unique_rm_uni_dir, "%s", testdir); } /* Now that everything is set up as it should be, do the create or remove */ if (rank == 0 && verbose >= 3) { fprintf(out_logfile, "V-3: collective_create_remove (create_remove_items): temp is \"%s\"\n", temp); fflush( out_logfile ); } create_remove_items(0, dirs, create, 1, temp, 0, progress); } /* reset all of the item names */ if (unique_dir_per_task) { sprintf(base_tree_name, "mdtest_tree.0"); } else { sprintf(base_tree_name, "mdtest_tree"); } if (!shared_file) { sprintf(mk_name, "mdtest.%d.", (0+(0*nstride))%ntasks); sprintf(stat_name, "mdtest.%d.", (0+(1*nstride))%ntasks); sprintf(read_name, "mdtest.%d.", (0+(2*nstride))%ntasks); sprintf(rm_name, "mdtest.%d.", (0+(3*nstride))%ntasks); } if (unique_dir_per_task) { sprintf(unique_mk_dir, "%s/mdtest_tree.%d.0", testdir, (0+(0*nstride))%ntasks); sprintf(unique_chdir_dir, "%s/mdtest_tree.%d.0", testdir, (0+(1*nstride))%ntasks); sprintf(unique_stat_dir, "%s/mdtest_tree.%d.0", testdir, (0+(2*nstride))%ntasks); sprintf(unique_read_dir, "%s/mdtest_tree.%d.0", testdir, (0+(3*nstride))%ntasks); sprintf(unique_rm_dir, "%s/mdtest_tree.%d.0", testdir, (0+(4*nstride))%ntasks); sprintf(unique_rm_uni_dir, "%s", testdir); } } void directory_test(const int iteration, const int ntasks, const char *path, rank_progress_t * progress) { int size; double t[5] = {0}; char temp_path[MAX_PATHLEN]; MPI_Comm_size(testComm, &size); if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering directory_test...\n" ); fflush( out_logfile ); } MPI_Barrier(testComm); t[0] = MPI_Wtime(); /* create phase */ if(create_only) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(MK_UNI_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 0); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: directory_test: create path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* "touch" the files */ if (collective_creates) { if (rank == 0) { collective_create_remove(1, 1, ntasks, temp_path, progress); } } else { /* create directories */ create_remove_items(0, 1, 1, 0, temp_path, 0, progress); } } } if (barriers) { MPI_Barrier(testComm); } t[1] = MPI_Wtime(); /* stat phase */ if (stat_only) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(STAT_SUB_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 1); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: directory_test: stat path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* stat directories */ if (random_seed > 0) { mdtest_stat(1, 1, dir_iter, temp_path, progress); } else { mdtest_stat(0, 1, dir_iter, temp_path, progress); } } } if (barriers) { MPI_Barrier(testComm); } t[2] = MPI_Wtime(); /* read phase */ if (read_only) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(READ_SUB_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 2); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: directory_test: read path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* read directories */ if (random_seed > 0) { ; /* N/A */ } else { ; /* N/A */ } } } if (barriers) { MPI_Barrier(testComm); } t[3] = MPI_Wtime(); if (remove_only) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(RM_SUB_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 3); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: directory_test: remove directories path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* remove directories */ if (collective_creates) { if (rank == 0) { collective_create_remove(0, 1, ntasks, temp_path, progress); } } else { create_remove_items(0, 1, 0, 0, temp_path, 0, progress); } } } if (barriers) { MPI_Barrier(testComm); } t[4] = MPI_Wtime(); if (remove_only) { if (unique_dir_per_task) { unique_dir_access(RM_UNI_DIR, temp_path); } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: directory_test: remove unique directories path is \"%s\"\n", temp_path ); fflush( out_logfile ); } } if (unique_dir_per_task && !time_unique_dir_overhead) { offset_timers(t, 4); } /* calculate times */ if (create_only) { summary_table[iteration].rate[0] = items*size/(t[1] - t[0]); summary_table[iteration].time[0] = t[1] - t[0]; summary_table[iteration].items[0] = items*size; summary_table[iteration].stonewall_last_item[0] = items; } if (stat_only) { summary_table[iteration].rate[1] = items*size/(t[2] - t[1]); summary_table[iteration].time[1] = t[2] - t[1]; summary_table[iteration].items[1] = items*size; summary_table[iteration].stonewall_last_item[1] = items; } if (read_only) { summary_table[iteration].rate[2] = items*size/(t[3] - t[2]); summary_table[iteration].time[2] = t[3] - t[2]; summary_table[iteration].items[2] = items*size; summary_table[iteration].stonewall_last_item[2] = items; } if (remove_only) { summary_table[iteration].rate[3] = items*size/(t[4] - t[3]); summary_table[iteration].time[3] = t[4] - t[3]; summary_table[iteration].items[3] = items*size; summary_table[iteration].stonewall_last_item[3] = items; } if (verbose >= 1 && rank == 0) { fprintf(out_logfile, "V-1: Directory creation: %14.3f sec, %14.3f ops/sec\n", t[1] - t[0], summary_table[iteration].rate[0]); fprintf(out_logfile, "V-1: Directory stat : %14.3f sec, %14.3f ops/sec\n", t[2] - t[1], summary_table[iteration].rate[1]); /* N/A fprintf(out_logfile, "V-1: Directory read : %14.3f sec, %14.3f ops/sec\n", t[3] - t[2], summary_table[iteration].rate[2]); */ fprintf(out_logfile, "V-1: Directory removal : %14.3f sec, %14.3f ops/sec\n", t[4] - t[3], summary_table[iteration].rate[3]); fflush(out_logfile); } } /* Returns if the stonewall was hit */ int updateStoneWallIterations(int iteration, rank_progress_t * progress, double tstart){ int hit = 0; if (verbose >= 1 ) { fprintf( out_logfile, "V-1: rank %d stonewall hit with %lld items\n", rank, (long long) progress->items_done ); fflush( out_logfile ); } uint64_t done = progress->items_done; long long unsigned max_iter = 0; MPI_Allreduce(& progress->items_done, & max_iter, 1, MPI_LONG_LONG_INT, MPI_MAX, testComm); summary_table[iteration].stonewall_time[MDTEST_FILE_CREATE_NUM] = MPI_Wtime() - tstart; // continue to the maximum... long long min_accessed = 0; MPI_Reduce(& progress->items_done, & min_accessed, 1, MPI_LONG_LONG_INT, MPI_MIN, 0, testComm); long long sum_accessed = 0; MPI_Reduce(& progress->items_done, & sum_accessed, 1, MPI_LONG_LONG_INT, MPI_SUM, 0, testComm); if(items != (sum_accessed / size) && rank == 0){ summary_table[iteration].stonewall_item_sum[MDTEST_FILE_CREATE_NUM] = sum_accessed; summary_table[iteration].stonewall_item_min[MDTEST_FILE_CREATE_NUM] = min_accessed * size; fprintf( out_logfile, "Continue stonewall hit min: %lld max: %lld avg: %.1f \n", min_accessed, max_iter, ((double) sum_accessed) / size); fflush( out_logfile ); } if( done != max_iter ){ hit = 1; } progress->items_start = done; progress->items_per_dir = max_iter; return hit; } void file_test(const int iteration, const int ntasks, const char *path, rank_progress_t * progress) { int size; double t[5] = {0}; char temp_path[MAX_PATHLEN]; MPI_Comm_size(testComm, &size); if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering file_test...\n" ); fflush( out_logfile ); } MPI_Barrier(testComm); t[0] = MPI_Wtime(); /* create phase */ if (create_only ) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(MK_UNI_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 0); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: file_test: create path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* "touch" the files */ if (collective_creates) { if (rank == 0) { collective_create_remove(1, 0, ntasks, temp_path, progress); } MPI_Barrier(testComm); } /* create files */ create_remove_items(0, 0, 1, 0, temp_path, 0, progress); if(stone_wall_timer_seconds){ int hit = updateStoneWallIterations(iteration, progress, t[0]); if (hit){ progress->stone_wall_timer_seconds = 0; printf("stonewall rank %d: %lld of %lld \n", rank, (long long) progress->items_start, (long long) progress->items_per_dir); create_remove_items(0, 0, 1, 0, temp_path, 0, progress); // now reset the values progress->stone_wall_timer_seconds = stone_wall_timer_seconds; } if (stoneWallingStatusFile){ StoreStoneWallingIterations(stoneWallingStatusFile, progress->items_done); } } } }else{ if (stoneWallingStatusFile){ int64_t expected_items; /* The number of items depends on the stonewalling file */ expected_items = ReadStoneWallingIterations(stoneWallingStatusFile); if(expected_items >= 0){ items = expected_items; progress->items_per_dir = items; } if (rank == 0) { if(expected_items == -1){ fprintf(out_logfile, "WARNING: could not read stonewall status file\n"); }else if(verbose >= 1){ fprintf(out_logfile, "Read stonewall status; items: "LLU"\n", items); } } } } if (barriers) { MPI_Barrier(testComm); } t[1] = MPI_Wtime(); /* stat phase */ if (stat_only ) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(STAT_SUB_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 1); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: file_test: stat path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* stat files */ mdtest_stat((random_seed > 0 ? 1 : 0), 0, dir_iter, temp_path, progress); } } if (barriers) { MPI_Barrier(testComm); } t[2] = MPI_Wtime(); /* read phase */ if (read_only ) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(READ_SUB_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 2); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: file_test: read path is \"%s\"\n", temp_path ); fflush( out_logfile ); } /* read files */ if (random_seed > 0) { mdtest_read(1,0, dir_iter, temp_path); } else { mdtest_read(0,0, dir_iter, temp_path); } } } if (barriers) { MPI_Barrier(testComm); } t[3] = MPI_Wtime(); if (remove_only) { for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(iteration, dir_iter); if (unique_dir_per_task) { unique_dir_access(RM_SUB_DIR, temp_path); if (!time_unique_dir_overhead) { offset_timers(t, 3); } } else { sprintf( temp_path, "%s/%s", testdir, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: file_test: rm directories path is \"%s\"\n", temp_path ); fflush( out_logfile ); } if (collective_creates) { if (rank == 0) { collective_create_remove(0, 0, ntasks, temp_path, progress); } } else { create_remove_items(0, 0, 0, 0, temp_path, 0, progress); } } } if (barriers) { MPI_Barrier(testComm); } t[4] = MPI_Wtime(); if (remove_only) { if (unique_dir_per_task) { unique_dir_access(RM_UNI_DIR, temp_path); } else { strcpy( temp_path, path ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: file_test: rm unique directories path is \"%s\"\n", temp_path ); fflush( out_logfile ); } } if (unique_dir_per_task && !time_unique_dir_overhead) { offset_timers(t, 4); } /* calculate times */ if (create_only) { summary_table[iteration].rate[4] = items*size/(t[1] - t[0]); summary_table[iteration].time[4] = t[1] - t[0]; summary_table[iteration].items[4] = items*size; summary_table[iteration].stonewall_last_item[4] = items; } if (stat_only) { summary_table[iteration].rate[5] = items*size/(t[2] - t[1]); summary_table[iteration].time[5] = t[2] - t[1]; summary_table[iteration].items[5] = items*size; summary_table[iteration].stonewall_last_item[5] = items; } if (read_only) { summary_table[iteration].rate[6] = items*size/(t[3] - t[2]); summary_table[iteration].time[6] = t[3] - t[2]; summary_table[iteration].items[6] = items*size; summary_table[iteration].stonewall_last_item[6] = items; } if (remove_only) { summary_table[iteration].rate[7] = items*size/(t[4] - t[3]); summary_table[iteration].time[7] = t[4] - t[3]; summary_table[iteration].items[7] = items*size; summary_table[iteration].stonewall_last_item[7] = items; } if (verbose >= 1 && rank == 0) { fprintf(out_logfile, "V-1: File creation : %14.3f sec, %14.3f ops/sec\n", t[1] - t[0], summary_table[iteration].rate[4]); fprintf(out_logfile, "V-1: File stat : %14.3f sec, %14.3f ops/sec\n", t[2] - t[1], summary_table[iteration].rate[5]); fprintf(out_logfile, "V-1: File read : %14.3f sec, %14.3f ops/sec\n", t[3] - t[2], summary_table[iteration].rate[6]); fprintf(out_logfile, "V-1: File removal : %14.3f sec, %14.3f ops/sec\n", t[4] - t[3], summary_table[iteration].rate[7]); fflush(out_logfile); } } void print_help (void) { int j; char APIs[1024]; char APIs_legacy[1024]; aiori_supported_apis(APIs, APIs_legacy); char apiStr[1024]; sprintf(apiStr, "API for I/O [%s]", APIs); fprintf(out_logfile, "Usage: mdtest [-b branching_factor] [-B] [-c] [-C] [-d testdir] [-D] [-e number_of_bytes_to_read]\n" " [-E] [-f first] [-F] [-h] [-i iterations] [-I items_per_dir] [-l last] [-L]\n" " [-n number_of_items] [-N stride_length] [-p seconds] [-r]\n" " [-R[seed]] [-s stride] [-S] [-t] [-T] [-u] [-v] [-a API]\n" " [-V verbosity_value] [-w number_of_bytes_to_write] [-W seconds] [-y] [-z depth] -Z\n" "\t-a: %s\n" "\t-b: branching factor of hierarchical directory structure\n" "\t-B: no barriers between phases\n" "\t-c: collective creates: task 0 does all creates\n" "\t-C: only create files/dirs\n" "\t-d: the directory in which the tests will run\n" "\t-D: perform test on directories only (no files)\n" "\t-e: bytes to read from each file\n" "\t-E: only read files/dir\n" "\t-f: first number of tasks on which the test will run\n" "\t-F: perform test on files only (no directories)\n" "\t-h: prints this help message\n" "\t-i: number of iterations the test will run\n" "\t-I: number of items per directory in tree\n" "\t-l: last number of tasks on which the test will run\n" "\t-L: files only at leaf level of tree\n" "\t-n: every process will creat/stat/read/remove # directories and files\n" "\t-N: stride # between neighbor tasks for file/dir operation (local=0)\n" "\t-p: pre-iteration delay (in seconds)\n" "\t-r: only remove files or directories left behind by previous runs\n" "\t-R: randomly stat files (optional argument for random seed)\n" "\t-s: stride between the number of tasks for each test\n" "\t-S: shared file access (file only, no directories)\n" "\t-t: time unique working directory overhead\n" "\t-T: only stat files/dirs\n" "\t-u: unique working directory for each task\n" "\t-v: verbosity (each instance of option increments by one)\n" "\t-V: verbosity value\n" "\t-w: bytes to write to each file after it is created\n" "\t-W: number in seconds; stonewall timer, write as many seconds and ensure all processes did the same number of operations (currently only stops during create phase)\n" "\t-x: StoneWallingStatusFile; contains the number of iterations of the creation phase, can be used to split phases across runs\n" "\t-y: sync file after writing\n" "\t-z: depth of hierarchical directory structure\n" "\t-Z: print time instead of rate\n", apiStr ); MPI_Initialized(&j); if (j) { MPI_Finalize(); } exit(0); } void summarize_results(int iterations) { char access[MAX_PATHLEN]; int i, j, k; int start, stop, tableSize = MDTEST_LAST_NUM; double min, max, mean, sd, sum = 0, var = 0, curr = 0; double all[iterations * size * tableSize]; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering summarize_results...\n" ); fflush( out_logfile ); } MPI_Barrier(testComm); for(int i=0; i < iterations; i++){ if(print_time){ MPI_Gather(& summary_table[i].time[0], tableSize, MPI_DOUBLE, & all[i*tableSize*size], tableSize, MPI_DOUBLE, 0, testComm); }else{ MPI_Gather(& summary_table[i].rate[0], tableSize, MPI_DOUBLE, & all[i*tableSize*size], tableSize, MPI_DOUBLE, 0, testComm); } } if (rank == 0) { fprintf(out_logfile, "\nSUMMARY %s: (of %d iterations)\n", print_time ? "time": "rate", iterations); fprintf(out_logfile, " Operation Max Min Mean Std Dev\n"); fprintf(out_logfile, " --------- --- --- ---- -------\n"); fflush(out_logfile); /* if files only access, skip entries 0-3 (the dir tests) */ if (files_only && !dirs_only) { start = 4; } else { start = 0; } /* if directories only access, skip entries 4-7 (the file tests) */ if (dirs_only && !files_only) { stop = 4; } else { stop = 8; } /* special case: if no directory or file tests, skip all */ if (!dirs_only && !files_only) { start = stop = 0; } /* calculate aggregates */ if (barriers) { double maxes[iterations]; /* Because each proc times itself, in the case of barriers we * have to backwards calculate the time to simulate the use * of barriers. */ for (i = start; i < stop; i++) { for (j=0; j maxes[j]) { min = maxes[j]; } if (max < maxes[j]) { max = maxes[j]; } sum += maxes[j]; } mean = sum / iterations; for (j=0; j curr) { min = curr; } if (max < curr) { max = curr; } sum += curr; } } mean = sum / (iterations * size); for (k=0; k curr) { min = curr; } if (max < curr) { max = curr; } sum += curr; } mean = sum / (iterations); for (j = 0; j < iterations; j++) { if(print_time){ curr = summary_table[j].time[i]; }else{ curr = summary_table[j].rate[i]; } var += pow((mean - curr), 2); } var = var / (iterations); sd = sqrt(var); switch (i) { case 8: strcpy(access, "Tree creation :"); break; case 9: strcpy(access, "Tree removal :"); break; default: strcpy(access, "ERR"); break; } fprintf(out_logfile, " %s ", access); fprintf(out_logfile, "%14.3f ", max); fprintf(out_logfile, "%14.3f ", min); fprintf(out_logfile, "%14.3f ", mean); fprintf(out_logfile, "%14.3f\n", sd); fflush(out_logfile); sum = var = 0; } } } /* Checks to see if the test setup is valid. If it isn't, fail. */ void valid_tests() { if (((stone_wall_timer_seconds > 0) && (branch_factor > 1)) || ! barriers) { fprintf(out_logfile, "Error, stone wall timer does only work with a branch factor <= 1 and with barriers\n"); MPI_Abort(testComm, 1); } if (!create_only && !stat_only && !read_only && !remove_only) { create_only = stat_only = read_only = remove_only = 1; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: main: Setting create/stat/read/remove_only to True\n" ); fflush( out_logfile ); } } if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering valid_tests...\n" ); fflush( out_logfile ); } /* if dirs_only and files_only were both left unset, set both now */ if (!dirs_only && !files_only) { dirs_only = files_only = 1; } /* if shared file 'S' access, no directory tests */ if (shared_file) { dirs_only = 0; } /* check for no barriers with shifting processes for different phases. that is, one may not specify both -B and -N as it will introduce race conditions that may cause errors stat'ing or deleting after creates. */ if (( barriers == 0 ) && ( nstride != 0 ) && ( rank == 0 )) { FAIL( "Possible race conditions will occur: -B not compatible with -N"); } /* check for collective_creates incompatibilities */ if (shared_file && collective_creates && rank == 0) { FAIL("-c not compatible with -S"); } if (path_count > 1 && collective_creates && rank == 0) { FAIL("-c not compatible with multiple test directories"); } if (collective_creates && !barriers) { FAIL("-c not compatible with -B"); } if (strcasecmp(backend_name, "POSIX") != 0 && strcasecmp(backend_name, "DUMMY") != 0) { FAIL("-a only supported interface is POSIX (and DUMMY) right now!"); } /* check for shared file incompatibilities */ if (unique_dir_per_task && shared_file && rank == 0) { FAIL("-u not compatible with -S"); } /* check multiple directory paths and strided option */ if (path_count > 1 && nstride > 0) { FAIL("cannot have multiple directory paths with -N strides between neighbor tasks"); } /* check for shared directory and multiple directories incompatibility */ if (path_count > 1 && unique_dir_per_task != 1) { FAIL("shared directory mode is not compatible with multiple directory paths"); } /* check if more directory paths than ranks */ if (path_count > size) { FAIL("cannot have more directory paths than MPI tasks"); } /* check depth */ if (depth < 0) { FAIL("depth must be greater than or equal to zero"); } /* check branch_factor */ if (branch_factor < 1 && depth > 0) { FAIL("branch factor must be greater than or equal to zero"); } /* check for valid number of items */ if ((items > 0) && (items_per_dir > 0)) { if(unique_dir_per_task){ FAIL("only specify the number of items or the number of items per directory"); }else if( items % items_per_dir != 0){ FAIL("items must be a multiple of items per directory"); }else if( stone_wall_timer_seconds != 0){ FAIL("items + items_per_dir can only be set without stonewalling"); } } } void show_file_system_size(char *file_system) { char real_path[MAX_PATHLEN]; char file_system_unit_str[MAX_PATHLEN] = "GiB"; char inode_unit_str[MAX_PATHLEN] = "Mi"; int64_t file_system_unit_val = 1024 * 1024 * 1024; int64_t inode_unit_val = 1024 * 1024; int64_t total_file_system_size, free_file_system_size, total_inodes, free_inodes; double total_file_system_size_hr, used_file_system_percentage, used_inode_percentage; ior_aiori_statfs_t stat_buf; int ret; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering show_file_system_size...\n" ); fflush( out_logfile ); } ret = backend->statfs (file_system, &stat_buf, ¶m); if (0 != ret) { FAIL("unable to stat file system"); } total_file_system_size = stat_buf.f_blocks * stat_buf.f_bsize; free_file_system_size = stat_buf.f_bfree * stat_buf.f_bsize; used_file_system_percentage = (1 - ((double)free_file_system_size / (double)total_file_system_size)) * 100; total_file_system_size_hr = (double)total_file_system_size / (double)file_system_unit_val; if (total_file_system_size_hr > 1024) { total_file_system_size_hr = total_file_system_size_hr / 1024; strcpy(file_system_unit_str, "TiB"); } /* inodes */ total_inodes = stat_buf.f_files; free_inodes = stat_buf.f_ffree; used_inode_percentage = (1 - ((double)free_inodes/(double)total_inodes)) * 100; if (realpath(file_system, real_path) == NULL) { FAIL("unable to use realpath()"); } /* show results */ fprintf(out_logfile, "Path: %s\n", real_path); fprintf(out_logfile, "FS: %.1f %s Used FS: %2.1f%% ", total_file_system_size_hr, file_system_unit_str, used_file_system_percentage); fprintf(out_logfile, "Inodes: %.1f %s Used Inodes: %2.1f%%\n", (double)total_inodes / (double)inode_unit_val, inode_unit_str, used_inode_percentage); fflush(out_logfile); return; } void display_freespace(char *testdirpath) { char dirpath[MAX_PATHLEN] = {0}; int i; int directoryFound = 0; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering display_freespace...\n" ); fflush( out_logfile ); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: testdirpath is \"%s\"\n", testdirpath ); fflush( out_logfile ); } strcpy(dirpath, testdirpath); /* get directory for outfile */ i = strlen(dirpath); while (i-- > 0) { if (dirpath[i] == '/') { dirpath[i] = '\0'; directoryFound = 1; break; } } /* if no directory/, use '.' */ if (directoryFound == 0) { strcpy(dirpath, "."); } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: Before show_file_system_size, dirpath is \"%s\"\n", dirpath ); fflush( out_logfile ); } show_file_system_size(dirpath); if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: After show_file_system_size, dirpath is \"%s\"\n", dirpath ); fflush( out_logfile ); } return; } void create_remove_directory_tree(int create, int currDepth, char* path, int dirNum, rank_progress_t * progress) { unsigned i; char dir[MAX_PATHLEN]; if (( rank == 0 ) && ( verbose >= 1 )) { fprintf( out_logfile, "V-1: Entering create_remove_directory_tree, currDepth = %d...\n", currDepth ); fflush( out_logfile ); } if (currDepth == 0) { sprintf(dir, "%s/%s.%d/", path, base_tree_name, dirNum); if (create) { if (rank == 0 && verbose >= 2) { fprintf(out_logfile, "V-2: Making directory \"%s\"\n", dir); fflush(out_logfile); } if (-1 == backend->mkdir (dir, DIRMODE, ¶m)) { fprintf(out_logfile, "error could not create directory \"%s\"\n", dir); } } create_remove_directory_tree(create, ++currDepth, dir, ++dirNum, progress); if (!create) { if (rank == 0 && verbose >= 2) { fprintf(out_logfile, "V-2: Remove directory \"%s\"\n", dir); fflush(out_logfile); } if (-1 == backend->rmdir(dir, ¶m)) { FAIL("Unable to remove directory"); } } } else if (currDepth <= depth) { char temp_path[MAX_PATHLEN]; strcpy(temp_path, path); int currDir = dirNum; for (i=0; i= 2) { fprintf(out_logfile, "V-2: Making directory \"%s\"\n", temp_path); fflush(out_logfile); } if (-1 == backend->mkdir(temp_path, DIRMODE, ¶m)) { FAIL("Unable to create directory"); } } create_remove_directory_tree(create, ++currDepth, temp_path, (branch_factor*currDir)+1, progress); currDepth--; if (!create) { if (rank == 0 && verbose >= 2) { fprintf(out_logfile, "V-2: Remove directory \"%s\"\n", temp_path); fflush(out_logfile); } if (-1 == backend->rmdir(temp_path, ¶m)) { FAIL("Unable to remove directory"); } } strcpy(temp_path, path); currDir++; } } } static void mdtest_iteration(int i, int j, MPI_Group testgroup, mdtest_results_t * summary_table){ rank_progress_t progress_o; memset(& progress_o, 0 , sizeof(progress_o)); progress_o.start_time = GetTimeStamp(); progress_o.stone_wall_timer_seconds = stone_wall_timer_seconds; progress_o.items_per_dir = items_per_dir; rank_progress_t * progress = & progress_o; /* start and end times of directory tree create/remove */ double startCreate, endCreate; int k; if (rank == 0 && verbose >= 1) { fprintf(out_logfile, "V-1: main: * iteration %d *\n", j+1); fflush(out_logfile); } for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(j, dir_iter); if (verbose >= 2 && rank == 0) { fprintf(out_logfile, "V-2: main (for j loop): making testdir, \"%s\"\n", testdir ); fflush( out_logfile ); } if ((rank < path_count) && backend->access(testdir, F_OK, ¶m) != 0) { if (backend->mkdir(testdir, DIRMODE, ¶m) != 0) { FAIL("Unable to create test directory"); } } } if (create_only) { /* create hierarchical directory structure */ MPI_Barrier(testComm); startCreate = MPI_Wtime(); for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(j, dir_iter); if (unique_dir_per_task) { if (collective_creates && (rank == 0)) { /* * This is inside two loops, one of which already uses "i" and the other uses "j". * I don't know how this ever worked. I'm changing this loop to use "k". */ for (k=0; k= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (create hierarchical directory loop-collective): Calling create_remove_directory_tree with \"%s\"\n", testdir ); fflush( out_logfile ); } /* * Let's pass in the path to the directory we most recently made so that we can use * full paths in the other calls. */ create_remove_directory_tree(1, 0, testdir, 0, progress); if(CHECK_STONE_WALL(progress)){ size = k; break; } } } else if (!collective_creates) { if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (create hierarchical directory loop-!collective_creates): Calling create_remove_directory_tree with \"%s\"\n", testdir ); fflush( out_logfile ); } /* * Let's pass in the path to the directory we most recently made so that we can use * full paths in the other calls. */ create_remove_directory_tree(1, 0, testdir, 0, progress); } } else { if (rank == 0) { if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (create hierarchical directory loop-!unque_dir_per_task): Calling create_remove_directory_tree with \"%s\"\n", testdir ); fflush( out_logfile ); } /* * Let's pass in the path to the directory we most recently made so that we can use * full paths in the other calls. */ create_remove_directory_tree(1, 0 , testdir, 0, progress); } } } MPI_Barrier(testComm); endCreate = MPI_Wtime(); summary_table->rate[8] = num_dirs_in_tree / (endCreate - startCreate); summary_table->time[8] = (endCreate - startCreate); summary_table->items[8] = num_dirs_in_tree; summary_table->stonewall_last_item[8] = num_dirs_in_tree; if (verbose >= 1 && rank == 0) { fprintf(out_logfile, "V-1: main: Tree creation : %14.3f sec, %14.3f ops/sec\n", (endCreate - startCreate), summary_table->rate[8]); fflush(out_logfile); } } sprintf(unique_mk_dir, "%s.0", base_tree_name); sprintf(unique_chdir_dir, "%s.0", base_tree_name); sprintf(unique_stat_dir, "%s.0", base_tree_name); sprintf(unique_read_dir, "%s.0", base_tree_name); sprintf(unique_rm_dir, "%s.0", base_tree_name); unique_rm_uni_dir[0] = 0; if (!unique_dir_per_task) { if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main: Using unique_mk_dir, \"%s\"\n", unique_mk_dir ); fflush( out_logfile ); } } if (rank < i) { if (!shared_file) { sprintf(mk_name, "mdtest.%d.", (rank+(0*nstride))%i); sprintf(stat_name, "mdtest.%d.", (rank+(1*nstride))%i); sprintf(read_name, "mdtest.%d.", (rank+(2*nstride))%i); sprintf(rm_name, "mdtest.%d.", (rank+(3*nstride))%i); } if (unique_dir_per_task) { sprintf(unique_mk_dir, "mdtest_tree.%d.0", (rank+(0*nstride))%i); sprintf(unique_chdir_dir, "mdtest_tree.%d.0", (rank+(1*nstride))%i); sprintf(unique_stat_dir, "mdtest_tree.%d.0", (rank+(2*nstride))%i); sprintf(unique_read_dir, "mdtest_tree.%d.0", (rank+(3*nstride))%i); sprintf(unique_rm_dir, "mdtest_tree.%d.0", (rank+(4*nstride))%i); unique_rm_uni_dir[0] = 0; } if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main: Copied unique_mk_dir, \"%s\", to topdir\n", unique_mk_dir ); fflush( out_logfile ); } if (dirs_only && !shared_file) { if (pre_delay) { DelaySecs(pre_delay); } directory_test(j, i, unique_mk_dir, progress); } if (files_only) { if (pre_delay) { DelaySecs(pre_delay); } file_test(j, i, unique_mk_dir, progress); } } /* remove directory structure */ if (!unique_dir_per_task) { if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main: Using testdir, \"%s\"\n", testdir ); fflush( out_logfile ); } } MPI_Barrier(testComm); if (remove_only) { startCreate = MPI_Wtime(); for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(j, dir_iter); if (unique_dir_per_task) { if (collective_creates && (rank == 0)) { /* * This is inside two loops, one of which already uses "i" and the other uses "j". * I don't know how this ever worked. I'm changing this loop to use "k". */ for (k=0; k= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (remove hierarchical directory loop-collective): Calling create_remove_directory_tree with \"%s\"\n", testdir ); fflush( out_logfile ); } /* * Let's pass in the path to the directory we most recently made so that we can use * full paths in the other calls. */ create_remove_directory_tree(0, 0, testdir, 0, progress); if(CHECK_STONE_WALL(progress)){ size = k; break; } } } else if (!collective_creates) { if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (remove hierarchical directory loop-!collective): Calling create_remove_directory_tree with \"%s\"\n", testdir ); fflush( out_logfile ); } /* * Let's pass in the path to the directory we most recently made so that we can use * full paths in the other calls. */ create_remove_directory_tree(0, 0, testdir, 0, progress); } } else { if (rank == 0) { if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (remove hierarchical directory loop-!unique_dir_per_task): Calling create_remove_directory_tree with \"%s\"\n", testdir ); fflush( out_logfile ); } /* * Let's pass in the path to the directory we most recently made so that we can use * full paths in the other calls. */ create_remove_directory_tree(0, 0 , testdir, 0, progress); } } } MPI_Barrier(testComm); endCreate = MPI_Wtime(); summary_table->rate[9] = num_dirs_in_tree / (endCreate - startCreate); summary_table->time[9] = endCreate - startCreate; summary_table->items[9] = num_dirs_in_tree; summary_table->stonewall_last_item[8] = num_dirs_in_tree; if (verbose >= 1 && rank == 0) { fprintf(out_logfile, "V-1: main Tree removal : %14.3f sec, %14.3f ops/sec\n", (endCreate - startCreate), summary_table->rate[9]); fflush(out_logfile); } if (( rank == 0 ) && ( verbose >=2 )) { fprintf( out_logfile, "V-2: main (at end of for j loop): Removing testdir of \"%s\"\n", testdir ); fflush( out_logfile ); } for (int dir_iter = 0; dir_iter < directory_loops; dir_iter ++){ prep_testdir(j, dir_iter); if ((rank < path_count) && backend->access(testdir, F_OK, ¶m) == 0) { //if (( rank == 0 ) && access(testdir, F_OK) == 0) { if (backend->rmdir(testdir, ¶m) == -1) { FAIL("unable to remove directory"); } } } } else { summary_table->rate[9] = 0; } } void mdtest_init_args(){ barriers = 1; branch_factor = 1; throttle = 1; stoneWallingStatusFile = NULL; create_only = 0; stat_only = 0; read_only = 0; remove_only = 0; leaf_only = 0; depth = 0; num_dirs_in_tree = 0; items_per_dir = 0; random_seed = 0; print_time = 0; shared_file = 0; files_only = 0; dirs_only = 0; pre_delay = 0; unique_dir_per_task = 0; time_unique_dir_overhead = 0; items = 0; collective_creates = 0; write_bytes = 0; stone_wall_timer_seconds = 0; read_bytes = 0; sync_file = 0; path_count = 0; nstride = 0; } mdtest_results_t * mdtest_run(int argc, char **argv, MPI_Comm world_com, FILE * world_out) { testComm = world_com; out_logfile = world_out; mpi_comm_world = world_com; init_clock(); mdtest_init_args(); int i, j; int nodeCount; MPI_Group worldgroup, testgroup; struct { int first; int last; int stride; } range = {0, 0, 1}; int first = 1; int last = 0; int stride = 1; int iterations = 1; verbose = 0; int no_barriers = 0; char * path = "./out"; int randomize = 0; char APIs[1024]; char APIs_legacy[1024]; aiori_supported_apis(APIs, APIs_legacy); char apiStr[1024]; sprintf(apiStr, "API for I/O [%s]", APIs); option_help options [] = { {'a', NULL, apiStr, OPTION_OPTIONAL_ARGUMENT, 's', & backend_name}, {'b', NULL, "branching factor of hierarchical directory structure", OPTION_OPTIONAL_ARGUMENT, 'd', & branch_factor}, {'d', NULL, "the directory in which the tests will run", OPTION_OPTIONAL_ARGUMENT, 's', & path}, {'B', NULL, "no barriers between phases", OPTION_OPTIONAL_ARGUMENT, 'd', & no_barriers}, {'C', NULL, "only create files/dirs", OPTION_FLAG, 'd', & create_only}, {'T', NULL, "only stat files/dirs", OPTION_FLAG, 'd', & stat_only}, {'E', NULL, "only read files/dir", OPTION_FLAG, 'd', & read_only}, {'r', NULL, "only remove files or directories left behind by previous runs", OPTION_FLAG, 'd', & remove_only}, {'D', NULL, "perform test on directories only (no files)", OPTION_FLAG, 'd', & dirs_only}, {'e', NULL, "bytes to read from each file", OPTION_OPTIONAL_ARGUMENT, 'l', & read_bytes}, {'f', NULL, "first number of tasks on which the test will run", OPTION_OPTIONAL_ARGUMENT, 'd', & first}, {'F', NULL, "perform test on files only (no directories)", OPTION_FLAG, 'd', & files_only}, {'i', NULL, "number of iterations the test will run", OPTION_OPTIONAL_ARGUMENT, 'd', & iterations}, {'I', NULL, "number of items per directory in tree", OPTION_OPTIONAL_ARGUMENT, 'l', & items_per_dir}, {'l', NULL, "last number of tasks on which the test will run", OPTION_OPTIONAL_ARGUMENT, 'd', & last}, {'L', NULL, "files only at leaf level of tree", OPTION_FLAG, 'd', & leaf_only}, {'n', NULL, "every process will creat/stat/read/remove # directories and files", OPTION_OPTIONAL_ARGUMENT, 'l', & items}, {'N', NULL, "stride # between neighbor tasks for file/dir operation (local=0)", OPTION_OPTIONAL_ARGUMENT, 'd', & nstride}, {'p', NULL, "pre-iteration delay (in seconds)", OPTION_OPTIONAL_ARGUMENT, 'd', & pre_delay}, {'R', NULL, "random access to files (only for stat)", OPTION_FLAG, 'd', & randomize}, {0, "random-seed", "random seed for -R", OPTION_OPTIONAL_ARGUMENT, 'd', & random_seed}, {'s', NULL, "stride between the number of tasks for each test", OPTION_OPTIONAL_ARGUMENT, 'd', & stride}, {'S', NULL, "shared file access (file only, no directories)", OPTION_FLAG, 'd', & shared_file}, {'c', NULL, "collective creates: task 0 does all creates", OPTION_FLAG, 'd', & collective_creates}, {'t', NULL, "time unique working directory overhead", OPTION_FLAG, 'd', & time_unique_dir_overhead}, {'u', NULL, "unique working directory for each task", OPTION_FLAG, 'd', & unique_dir_per_task}, {'v', NULL, "verbosity (each instance of option increments by one)", OPTION_FLAG, 'd', & verbose}, {'V', NULL, "verbosity value", OPTION_OPTIONAL_ARGUMENT, 'd', & verbose}, {'w', NULL, "bytes to write to each file after it is created", OPTION_OPTIONAL_ARGUMENT, 'l', & write_bytes}, {'W', NULL, "number in seconds; stonewall timer, write as many seconds and ensure all processes did the same number of operations (currently only stops during create phase)", OPTION_OPTIONAL_ARGUMENT, 'd', & stone_wall_timer_seconds}, {'x', NULL, "StoneWallingStatusFile; contains the number of iterations of the creation phase, can be used to split phases across runs", OPTION_OPTIONAL_ARGUMENT, 's', & stoneWallingStatusFile}, {'y', NULL, "sync file after writing", OPTION_FLAG, 'd', & sync_file}, {'z', NULL, "depth of hierarchical directory structure", OPTION_OPTIONAL_ARGUMENT, 'd', & depth}, {'Z', NULL, "print time instead of rate", OPTION_FLAG, 'd', & print_time}, LAST_OPTION }; int printhelp = 0; int parsed_options = option_parse(argc, argv, options, & printhelp); backend = aiori_select(backend_name); if (NULL == backend) { FAIL("Could not find suitable backend to use"); } if(backend->get_options != NULL){ option_parse(argc - parsed_options, argv + parsed_options, backend->get_options(), & printhelp); } if(printhelp != 0){ printf("Usage: %s ", argv[0]); option_print_help(options, 0); if(backend->get_options != NULL){ printf("\nPlugin options for backend %s\n", backend_name); option_print_help(backend->get_options(), 1); } if(printhelp == 1){ exit(0); }else{ exit(1); } } MPI_Comm_rank(testComm, &rank); MPI_Comm_size(testComm, &size); pid = getpid(); uid = getuid(); nodeCount = size / CountTasksPerNode(testComm); if (rank == 0) { fprintf(out_logfile, "-- started at %s --\n\n", PrintTimestamp()); fprintf(out_logfile, "mdtest-%s was launched with %d total task(s) on %d node(s)\n", RELEASE_VERS, size, nodeCount); fflush(out_logfile); } if (rank == 0) { fprintf(out_logfile, "Command line used: %s", argv[0]); for (i = 1; i < argc; i++) { fprintf(out_logfile, " \"%s\"", argv[i]); } fprintf(out_logfile, "\n"); fflush(out_logfile); } /* adjust special variables */ barriers = ! no_barriers; if (path != NULL){ parse_dirpath(path); } if( randomize > 0 ){ if (random_seed == 0) { /* Ensure all procs have the same random number */ random_seed = time(NULL); MPI_Barrier(testComm); MPI_Bcast(&random_seed, 1, MPI_INT, 0, testComm); } random_seed += rank; } if ((items > 0) && (items_per_dir > 0) && (! unique_dir_per_task)) { directory_loops = items / items_per_dir; }else{ directory_loops = 1; } valid_tests(); if (( rank == 0 ) && ( verbose >= 1 )) { // option_print_current(options); fprintf (out_logfile, "api : %s\n", backend_name); fprintf( out_logfile, "barriers : %s\n", ( barriers ? "True" : "False" )); fprintf( out_logfile, "collective_creates : %s\n", ( collective_creates ? "True" : "False" )); fprintf( out_logfile, "create_only : %s\n", ( create_only ? "True" : "False" )); fprintf( out_logfile, "dirpath(s):\n" ); for ( i = 0; i < path_count; i++ ) { fprintf( out_logfile, "\t%s\n", filenames[i] ); } fprintf( out_logfile, "dirs_only : %s\n", ( dirs_only ? "True" : "False" )); fprintf( out_logfile, "read_bytes : "LLU"\n", read_bytes ); fprintf( out_logfile, "read_only : %s\n", ( read_only ? "True" : "False" )); fprintf( out_logfile, "first : %d\n", first ); fprintf( out_logfile, "files_only : %s\n", ( files_only ? "True" : "False" )); fprintf( out_logfile, "iterations : %d\n", iterations ); fprintf( out_logfile, "items_per_dir : "LLU"\n", items_per_dir ); fprintf( out_logfile, "last : %d\n", last ); fprintf( out_logfile, "leaf_only : %s\n", ( leaf_only ? "True" : "False" )); fprintf( out_logfile, "items : "LLU"\n", items ); fprintf( out_logfile, "nstride : %d\n", nstride ); fprintf( out_logfile, "pre_delay : %d\n", pre_delay ); fprintf( out_logfile, "remove_only : %s\n", ( leaf_only ? "True" : "False" )); fprintf( out_logfile, "random_seed : %d\n", random_seed ); fprintf( out_logfile, "stride : %d\n", stride ); fprintf( out_logfile, "shared_file : %s\n", ( shared_file ? "True" : "False" )); fprintf( out_logfile, "time_unique_dir_overhead: %s\n", ( time_unique_dir_overhead ? "True" : "False" )); fprintf( out_logfile, "stone_wall_timer_seconds: %d\n", stone_wall_timer_seconds); fprintf( out_logfile, "stat_only : %s\n", ( stat_only ? "True" : "False" )); fprintf( out_logfile, "unique_dir_per_task : %s\n", ( unique_dir_per_task ? "True" : "False" )); fprintf( out_logfile, "write_bytes : "LLU"\n", write_bytes ); fprintf( out_logfile, "sync_file : %s\n", ( sync_file ? "True" : "False" )); fprintf( out_logfile, "depth : %d\n", depth ); fflush( out_logfile ); } /* setup total number of items and number of items per dir */ if (depth <= 0) { num_dirs_in_tree = 1; } else { if (branch_factor < 1) { num_dirs_in_tree = 1; } else if (branch_factor == 1) { num_dirs_in_tree = depth + 1; } else { num_dirs_in_tree = (1 - pow(branch_factor, depth+1)) / (1 - branch_factor); } } if (items_per_dir > 0) { if(unique_dir_per_task){ items = items_per_dir * num_dirs_in_tree; } } else { if (leaf_only) { if (branch_factor <= 1) { items_per_dir = items; } else { items_per_dir = (uint64_t) (items / pow(branch_factor, depth)); items = items_per_dir * (uint64_t) pow(branch_factor, depth); } } else { items_per_dir = items / num_dirs_in_tree; items = items_per_dir * num_dirs_in_tree; } } /* initialize rand_array */ if (random_seed > 0) { srand(random_seed); uint64_t s; rand_array = (uint64_t *) malloc( items * sizeof(*rand_array)); for (s=0; s < items; s++) { rand_array[s] = s; } /* shuffle list randomly */ uint64_t n = items; while (n>1) { n--; /* * Generate a random number in the range 0 .. n * * rand() returns a number from 0 .. RAND_MAX. Divide that * by RAND_MAX and you get a floating point number in the * range 0 .. 1. Multiply that by n and you get a number in * the range 0 .. n. */ uint64_t k = ( uint64_t ) ((( double )rand() / ( double )RAND_MAX ) * ( double )n ); /* * Now move the nth element to the kth (randomly chosen) * element, and the kth element to the nth element. */ uint64_t tmp = rand_array[k]; rand_array[k] = rand_array[n]; rand_array[n] = tmp; } } /* allocate and initialize write buffer with # */ if (write_bytes > 0) { write_buffer = (char *)malloc(write_bytes); if (write_buffer == NULL) { FAIL("out of memory"); } memset(write_buffer, 0x23, write_bytes); } /* setup directory path to work in */ if (path_count == 0) { /* special case where no directory path provided with '-d' option */ char *ret = getcwd(testdirpath, MAX_PATHLEN); if (ret == NULL) { FAIL("Unable to get current working directory"); } path_count = 1; } else { strcpy(testdirpath, filenames[rank%path_count]); } /* if directory does not exist, create it */ if ((rank < path_count) && backend->access(testdirpath, F_OK, ¶m) != 0) { if (backend->mkdir(testdirpath, DIRMODE, ¶m) != 0) { FAIL("Unable to create test directory path"); } } /* display disk usage */ if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (before display_freespace): testdirpath is \"%s\"\n", testdirpath ); fflush( out_logfile ); } if (rank == 0) display_freespace(testdirpath); if (verbose >= 3 && rank == 0) { fprintf(out_logfile, "V-3: main (after display_freespace): testdirpath is \"%s\"\n", testdirpath ); fflush( out_logfile ); } if (rank == 0) { if (random_seed > 0) { fprintf(out_logfile, "random seed: %d\n", random_seed); } } if (gethostname(hostname, MAX_PATHLEN) == -1) { perror("gethostname"); MPI_Abort(testComm, 2); } if (last == 0) { first = size; last = size; } /* setup summary table for recording results */ summary_table = (mdtest_results_t *) malloc(iterations * sizeof(mdtest_results_t)); memset(summary_table, 0, sizeof(mdtest_results_t)); for(int i=0; i < iterations; i++){ for(int j=0; j < MDTEST_LAST_NUM; j++){ summary_table[i].rate[j] = 0.0; summary_table[i].time[j] = 0.0; } } if (summary_table == NULL) { FAIL("out of memory"); } if (unique_dir_per_task) { sprintf(base_tree_name, "mdtest_tree.%d", rank); } else { sprintf(base_tree_name, "mdtest_tree"); } /* default use shared directory */ strcpy(mk_name, "mdtest.shared."); strcpy(stat_name, "mdtest.shared."); strcpy(read_name, "mdtest.shared."); strcpy(rm_name, "mdtest.shared."); MPI_Comm_group(testComm, &worldgroup); /* Run the tests */ for (i = first; i <= last && i <= size; i += stride) { range.last = i - 1; MPI_Group_range_incl(worldgroup, 1, (void *)&range, &testgroup); MPI_Comm_create(testComm, testgroup, &testComm); if (rank == 0) { if (files_only && dirs_only) { fprintf(out_logfile, "\n%d tasks, "LLU" files/directories\n", i, i * items); } else if (files_only) { if (!shared_file) { fprintf(out_logfile, "\n%d tasks, "LLU" files\n", i, i * items); } else { fprintf(out_logfile, "\n%d tasks, 1 file\n", i); } } else if (dirs_only) { fprintf(out_logfile, "\n%d tasks, "LLU" directories\n", i, i * items); } } if (rank == 0 && verbose >= 1) { fprintf(out_logfile, "\n"); fprintf(out_logfile, " Operation Duration Rate\n"); fprintf(out_logfile, " --------- -------- ----\n"); } for (j = 0; j < iterations; j++) { // keep track of the current status for stonewalling mdtest_iteration(i, j, testgroup, & summary_table[j]); } summarize_results(iterations); if (i == 1 && stride > 1) { i = 0; } } if (rank == 0) { fprintf(out_logfile, "\n-- finished at %s --\n", PrintTimestamp()); fflush(out_logfile); } if (random_seed > 0) { free(rand_array); } return summary_table; }