>> Do you have any suggestions how to investigate this situation?
> Have you got OMPI_ENABLE_DEBUG defined? The symptoms of what you are
> seeing sound like what might happen if debug is off and you trigger an
> issue I posted about here related to thread safety of mpool.
unfortunately, I have debug turned on (i.e. OMPI_ENABLE_DEBUG is defined in include/openmpi/opal_config.h).
Dr. Mondrian Nuessle
Phone: +49 621 181 2717 University of Heidelberg
Fax: +49 621 181 2713 Computer Architecture Group