Add OpenPM critical zone for FITS file writing from within threads.

Jürgen Knödlseder
1 parent 42c737c1
Showing 1 changed file with 6 additions and 2 deletions
src/ctobssim/ctobssim.cpp
@@ -380,8 +380,12 @@ void ctobssim::run(void)
                     // Store output file name in original observation
                     obs->eventfile(outfile);
  
-                    // Save observation into FITS file
-                    obs_clone.save(outfile, clobber());
+                    // Save observation into FITS file. This is a critical zone
+                    // to avoid multiple threads writing simultaneously
+                    #pragma omp critical
+                    {
+                        obs_clone.save(outfile, clobber());
+                    }
  
                 }