Nathan, thanks for taking care of this! I looked at the PR and wonder
why we don't move the whole session directory to /dev/shm on Linux
instead of introducing a new mca parameter?
Joseph
On 05/24/2018 04:28 PM, Nathan Hjelm wrote:
PR is up
https://github.com/open-mpi/ompi/pull/5193
-Natha
PR is up
https://github.com/open-mpi/ompi/pull/5193
-Nathan
> On May 24, 2018, at 7:09 AM, Nathan Hjelm wrote:
>
> Ok, thanks for testing that. I will open a PR for master changing the default
> backing location to /dev/shm on linux. Will be PR’d to v3.0.x and v3.1.x.
>
> -Nathan
>
>> On M
Ok, thanks for testing that. I will open a PR for master changing the default
backing location to /dev/shm on linux. Will be PR’d to v3.0.x and v3.1.x.
-Nathan
> On May 24, 2018, at 6:46 AM, Joseph Schuchart wrote:
>
> Thank you all for your input!
>
> Nathan: thanks for that hint, this seems
Thank you all for your input!
Nathan: thanks for that hint, this seems to be the culprit: With your
patch, I do not observe a difference in the performance between the two
memory allocations. I remembered that Open MPI allows to change the
shmem allocator on the command line. Using vanilla Ope
