Closed cwsmith closed 1 year ago
@cwsmith we are not supporting MPI shared memory anymore. Please keep useShared = false
, or better yet delete specification of useShared
from your input files. In the near future we will try to remove this from example input files, and in the less near future we will remove MPI shared memory from gkeyll altogether (in fact we already have, but it's in a branch we haven't merged).
If you application needs shared memory to make progress, please get in touch with one of the Gkeyll developers. They may be able to suggest workarounds.
OK. Thanks for the quick feedback.
Running the vlasov quickstart parallel example from here:
https://gkeyll.readthedocs.io/en/latest/quickstart/vlasovExample1.html#running-the-simulation
using the lua script here:
https://gkeyll.readthedocs.io/en/latest/quickstart/inputFiles/vm-tsw-2x2v.html
on a workstation using mpich 3.3.2 fails with the following error:
On an Intel Mac we also tried letting the gkyl install scripts install OpenMPI and hit the same errors.
On the workstation, making the following changes to disable shared memory and increase the number of subdomains appeared to avoid the failures: