Hi, I've installed on a Red Hat 7.2 the OpenMPI distributed via Yum:
* openmpi-devel.x86_64 1.10.3-3.el7 * any code I try to run (including the mpitests-*) I get the following message with slight variants: * my_machine.171619hfi_wait_for_device: The /dev/hfi1_0 device failed to appear after 15.0 seconds: Connection timed out* Is anyone able to help me in identifying the source of the problem? Anyway, * /dev/hfi1_0* doesn't exist. If I use an OpenMPI version compiled from source I have no issue (gcc 4.8.5). many thanks in advance. cheers Daniele
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