Support IO redirect from main()

doc/USER_GUIDE

@@ -280,7 +280,8 @@ GENERAL:
   * summaryAlways        - Always print the long summary for each test.
                            Useful for long runs that may be interrupted, preventing
                            the final long summary for ALL tests to be printed.
-
+  * summaryFile=File     - Output the summary to the file instead on stdout/stderr.
+  * summaryFormat=FMT    - Choose the output format -- default, JSON, CSV
 
 POSIX-ONLY:
 ===========

src/ior.c

@@ -90,6 +90,7 @@ IOR_test_t * ior_run(int argc, char **argv, MPI_Comm world_com, FILE * world_out
         for (tptr = tests_head; tptr != NULL; tptr = tptr->next) {
                 totalErrorCount = 0;
                 verbose = tptr->params.verbose;
+                tptr->params.testComm = world_com;
                 if (rank == 0 && verbose >= VERBOSE_0) {
                         ShowTestInfo(&tptr->params);
                 }
@@ -125,6 +126,7 @@ int ior_main(int argc, char **argv)
     int i;
     IOR_test_t *tests_head;
     IOR_test_t *tptr;
+
     out_logfile = stdout;
 
     /*
@@ -153,6 +155,7 @@ int ior_main(int argc, char **argv)
     MPI_CHECK(MPI_Comm_size(mpi_comm_world, &numTasksWorld),
               "cannot get number of tasks");
     MPI_CHECK(MPI_Comm_rank(mpi_comm_world, &rank), "cannot get rank");
+
     PrintEarlyHeader();
 
     /* set error-handling */
@@ -230,6 +233,8 @@ int ior_main(int argc, char **argv)
     aws_cleanup();
   #endif
 
+    fflush(out_logfile);
+
     return totalErrorCount;
 }
 
@@ -1668,7 +1673,6 @@ static void PrintLongSummaryOneOperation(IOR_test_t *test, double *times, char *
         struct results *bw;
         struct results *ops;
         int reps;
-
         if (rank != 0 || verbose < VERBOSE_0)
                 return;
 
@@ -1682,14 +1686,12 @@ static void PrintLongSummaryOneOperation(IOR_test_t *test, double *times, char *
         fprintf(out_logfile, "%10.2f ", bw->max / MEBIBYTE);
         fprintf(out_logfile, "%10.2f ", bw->min / MEBIBYTE);
         fprintf(out_logfile, "%10.2f ", bw->mean / MEBIBYTE);
-
         fprintf(out_logfile, "%10.2f ", bw->sd / MEBIBYTE);
         fprintf(out_logfile, "%10.2f ", ops->max);
         fprintf(out_logfile, "%10.2f ", ops->min);
         fprintf(out_logfile, "%10.2f ", ops->mean);
         fprintf(out_logfile, "%10.2f ", ops->sd);
-        fprintf(out_logfile, "%10.5f ",
-                mean_of_array_of_doubles(times, reps));
+        fprintf(out_logfile, "%10.5f ", mean_of_array_of_doubles(times, reps));
         fprintf(out_logfile, "%5d ", params->id);
         fprintf(out_logfile, "%6d ", params->numTasks);
         fprintf(out_logfile, "%3d ", params->tasksPerNode);
@@ -1742,7 +1744,6 @@ static void PrintLongSummaryHeader()
 static void PrintLongSummaryAllTests(IOR_test_t *tests_head)
 {
         IOR_test_t *tptr;
-
         if (rank != 0 || verbose < VERBOSE_0)
                 return;
 

src/ior.h

@@ -82,7 +82,6 @@ typedef struct IO_BUFFERS
 
 typedef struct
 {
-    FILE * out_logfile;
     char debug[MAX_STR];             /* debug info string */
     unsigned int mode;               /* file permissions */
     unsigned int openFlags;          /* open flags (see also <open>) */

src/iordef.h

@@ -61,6 +61,12 @@ extern int verbose;                            /* verbose output */
 
 /*************************** D E F I N I T I O N S ****************************/
 
+enum OutputFormat_t{
+  OUTPUT_DEFAULT,
+  OUTPUT_CSV,
+  OUTPUT_JSON
+};
+
 #ifndef FALSE
 #   define FALSE           0
 #endif /* not FALSE */

src/parse_options.c

@@ -170,6 +170,21 @@ void DecodeDirective(char *line, IOR_param_t *params)
         }
         if (strcasecmp(option, "api") == 0) {
                 strcpy(params->api, value);
+        } else if (strcasecmp(option, "summaryFile") == 0) {
+          out_logfile = fopen(value, "w");
+          if (out_logfile == NULL){
+            FAIL("Cannot open output file for writes!");
+          }
+        } else if (strcasecmp(option, "summaryFormat") == 0) {
+                if(strcasecmp(value, "default")){
+                  outputFormat = OUTPUT_DEFAULT;
+                }else if(strcasecmp(value, "JSON")){
+                  outputFormat = OUTPUT_JSON;
+                }else if(strcasecmp(value, "CSV")){
+                  outputFormat = OUTPUT_CSV;
+                }else{
+                  FAIL("Unknown summaryFormat");
+                }
         } else if (strcasecmp(option, "refnum") == 0) {
                 params->referenceNumber = atoi(value);
         } else if (strcasecmp(option, "debug") == 0) {

src/utilities.c

@@ -57,6 +57,7 @@ int      verbose = VERBOSE_0;        /* verbose output */
 MPI_Comm testComm;
 MPI_Comm mpi_comm_world;
 FILE * out_logfile;
+enum OutputFormat_t outputFormat;
 
 /***************************** F U N C T I O N S ******************************/
 

src/utilities.h

@@ -26,6 +26,7 @@ extern int verbose;
 extern MPI_Comm testComm;
 extern MPI_Comm mpi_comm_world;
 extern FILE * out_logfile;
+extern enum OutputFormat_t outputFormat;  /* format of the output */
 
 /*
  * Try using the system's PATH_MAX, which is what realpath and such use.