patch the preloadee to use PID for MPI recordings

lquenti · Mar 4, 2024 · f4e01b2 · f4e01b2
1 parent ed21f87
commit f4e01b2
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/preloadee/preloadee.c b/preloadee/preloadee.c
@@ -40,8 +40,9 @@ static void init_state() {
   current_state = malloc(sizeof(state_t));
 
   int timestamp = (int)time(NULL);
+  pid_t pid = getpid();
   char filename[256];
-  sprintf(filename, "./io_recordings_%d.csv", timestamp);
+  sprintf(filename, "./io_recordings_%d_%d.csv", pid, timestamp);
   current_state->orig_read = dlsym(RTLD_NEXT, "read");
   current_state->orig_write = dlsym(RTLD_NEXT, "write");
   current_state->orig_open = dlsym(RTLD_NEXT, "open");