I am trying to print a character string to a file from one or more processors in a communicator. I thought that I could do this using PetscViewerASCIISynchronizedPrintf, but it prints to the screen instead of to the file opened as a viewer. The attached simple program illustrates the issue. If I remove the (if rank == 1) and therefore call PetscViewerASCIISynchronizedPrintf from every process, it works as expected. If called from only 1 process, it prints to the screen. I thought, from the documentation, that it was not collective, but maybe I am not understanding it's usage.
Randy M.
test.F90
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