Ben, ping me off list. I know the guy who heads the HPC Solutions
Architect team for AWS and an AWS Solutions Architect here in the UK.
On Fri, 7 Sep 2018 at 03:11, Benjamin Brock wrote:
>
> I'm setting up a cluster on AWS, which will have a 10Gb/s or 25Gb/s Ethernet
> network. Should I expect t
I'm setting up a cluster on AWS, which will have a 10Gb/s or 25Gb/s
Ethernet network. Should I expect to be able to get RoCE to work in Open
MPI on AWS?
More generally, what optimizations and performance tuning can I do to an
Open MPI installation to get good performance on an Ethernet network?
Thanks for the responses--from what you've said, it seems like MPI types
are indeed not guaranteed to be compile-time constants.
However, I worked with the people at IBM, and it seems like the difference
in behavior was caused by the IBM compiler, not the Spectrum IBM
implementation.
Ben
You can either move to MPI_Win_allocate or try the v4.0.x snapshots. I will
look at bringing the btl/vader support for osc/rdma back to v3.1.x. osc/pt2pt
will probably never become truly thread safe.
-Nathan
On Sep 06, 2018, at 08:34 AM, Joseph Schuchart wrote:
All,
I installed Open MPI 3.1
All,
I installed Open MPI 3.1.2 on my laptop today (up from 3.0.0, which
worked fine) and ran into the following error when trying to create a
window:
```
--
The OSC pt2pt component does not support MPI_THREAD_MULTIPLE in
