Hi, Joshua Ladd <jladd.m...@gmail.com> writes:
> This is an ancient version of HCOLL. Please upgrade to the latest > version (you can do this by installing HPC-X > https://www.mellanox.com/products/hpc-x-toolkit) Just to close the circle and inform that all seems OK now. I don't have root permission in this machine, so I could not change the Mellanox drivers (4.1.1.0.2), but I downloaded the latest (as far as I can tell) HPC-X version compatible with that driver (v.2.1.0), which comes with hcoll version (4.0.2127). I compiled the OpenMPI version that comes with HPC-X toolkit, so that I was using the same compiler (gcc-7.2.0) used in the cluster version of OpenMPI, then HDF5 as well. And with that, both the thread_io test code and our real app seem to behave very nicely and I get basically same timings when using the MPI_THREAD_MULTIPLE or the single threaded MPI version. All sorted. Many thanks, -- Ángel de Vicente Tel.: +34 922 605 747 Web.: http://research.iac.es/proyecto/polmag/ --------------------------------------------------------------------------------------------- ADVERTENCIA: Sobre la privacidad y cumplimiento de la Ley de Protección de Datos, acceda a http://www.iac.es/disclaimer.php WARNING: For more information on privacy and fulfilment of the Law concerning the Protection of Data, consult http://www.iac.es/disclaimer.php?lang=en
