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-rw-r--r--tools/h5diff/h5diff_main.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/tools/h5diff/h5diff_main.c b/tools/h5diff/h5diff_main.c
index 1c1823a..32061b7 100644
--- a/tools/h5diff/h5diff_main.c
+++ b/tools/h5diff/h5diff_main.c
@@ -22,7 +22,7 @@ static int check_n_input( const char* );
static int check_f_input( const char* );
void h5diff_exit(int status);
#ifdef H5_HAVE_PARALLEL
-static void ph5diff_worker( void );
+static void ph5diff_worker(int );
#endif
/*-------------------------------------------------------------------------
@@ -55,11 +55,11 @@ static void ph5diff_worker( void );
*-------------------------------------------------------------------------
*/
- int nID = 0;
int main(int argc, const char *argv[])
{
int i;
+ int nID = 0;
const char *s = NULL;
const char *fname1 = NULL;
const char *fname2 = NULL;
@@ -72,6 +72,7 @@ int main(int argc, const char *argv[])
#ifdef H5_HAVE_PARALLEL
MPI_Status Status;
outBuffOffset = 0;
+
#endif
/* See what we were called as to determine whether to run serial or parallel version
@@ -100,6 +101,12 @@ int main(int argc, const char *argv[])
else
g_nTasks = 1;
+ if(g_Parallel && (g_nTasks == 1))
+ {
+ printf("Need at least 2 tasks to run parallel diff\n");
+ h5diff_exit(1);
+ }
+
/* Have the manager process the command-line */
if(nID == 0)
{
@@ -288,12 +295,15 @@ int main(int argc, const char *argv[])
ret= (nfound==0 ? 0 : 1 );
if (options.err_stat)
ret=-1;
- return ret;
+ if(g_Parallel)
+ return 0;
+ else
+ return ret;
}
#ifdef H5_HAVE_PARALLEL
/* All other tasks become workers and wait for assignments. */
else
- ph5diff_worker();
+ ph5diff_worker(nID);
#endif
}
@@ -315,13 +325,12 @@ int main(int argc, const char *argv[])
*-------------------------------------------------------------------------
*/
static void
-ph5diff_worker(void)
+ph5diff_worker(int nID)
{
struct diff_args args;
hid_t file1_id, file2_id;
char filenames[2][1024];
hsize_t nfound=0;
- int nID;
MPI_Status Status;
MPI_Comm_rank(MPI_COMM_WORLD, &nID);