Re: [OMPI users] file/process write speed is not scalable

2020-04-13 Thread Dong-In Kang via users
Thank you for your suggestion. I am more concerned about the poor performance of one MPI process/socket case. The model fits better for my real workload. The performance that I see is a lot worse than what the underlying hardware can support. The best case (all MPI processes in a single socket) is

[OMPI users] Meaning of mpiexec error flags

2020-04-13 Thread Mccall, Kurt E. (MSFC-EV41) via users
My application is behaving correctly on node n006, and incorrectly on the lower numbered nodes. The flags in the error message below may give a clue as to why. What is the meaning of the flag values 0x11 and 0x13? == ALLOCATED NODES == n006

Re: [OMPI users] Meaning of mpiexec error flags

2020-04-13 Thread Ralph Castain via users
I updated the message to explain the flags (instead of a numerical value) for OMPI v5. In brief: #define PRRTE_NODE_FLAG_DAEMON_LAUNCHED    0x01   // whether or not the daemon on this node has been launched #define PRRTE_NODE_FLAG_LOC_VERIFIED               0x02   // whether or not the location

Re: [OMPI users] Meaning of mpiexec error flags

2020-04-13 Thread Mccall, Kurt E. (MSFC-EV41) via users
Thanks Ralph. So the difference between the working node flag (0x11) and the non-working nodes’ flags (0x13) is the flag PRRTE_NODE_FLAG_LOC_VERIFIED. What does that imply? The location of the daemon has NOT been verified? Kurt From: users On Behalf Of Ralph Castain via users Sent: Mon