Why do you need kernel support for interprocess shared memory? Just
allocate the symmetric heap as shared-memory. Sure, this does not support
other symmetric variables, but shmem_ptr can detect that and return NULL
for those cases.
shmem_ptr should behave similar to MPI_Win_shared_query...
Jeff
Dear all,
Looks like I have a weird issue never encountered before. While trying to
run simplest "Hello world" program, I get:
$ cat hello.c
#include
int main(int argc, char* argv[])
{
MPI_Init(&argc, &argv);
MPI_Finalize();
return 0;
}
$ mpicc hello.c -o hello
$ mpirun -np 1 ./hello
**xpmem kernel module.
On Fri, Jun 1, 2018 at 3:16 PM, Joshua Ladd wrote:
> Hi, Marcin
>
> Sorry for the late response (somehow this one got lost in the clutter). We
> added support for shmem_ptr in the UCX SPML in Open MPI 3.0. However, in
> order to use it, you must install the Knem kernel mod
Hi, Marcin
Sorry for the late response (somehow this one got lost in the clutter). We
added support for shmem_ptr in the UCX SPML in Open MPI 3.0. However, in
order to use it, you must install the Knem kernel module (
https://github.com/hjelmn/xpmem).
Best,
Josh
On Wed, Apr 18, 2018 at 4:01 AM,
