[OMPI users] I want to check our own modified Ofed stack with MPI application

Hi , We developed new OFED stack as for our requirements to our new product.Now it is needed to check the functionality of new OFED stack using MPI,used multi node setup to check this stack.But problem is we are not having no idea how to use OPEN-MPI tool to check our stack.I went through this sit

Re: [OMPI users] I want to check our own modified Ofed stack with MPI application

If I understand you correctly, it sounds like MPI -- overall -- is new to you. If that's the case, here's the 2 minute overview: MPI is communications middleware, typically used for parallel applications. MPI, as an API, is underlying-network-agnostic; hence, it can be used with TCP sockets, et

Re: [OMPI users] High CPU usage with yield_when_idle =1 on CFS

This might also be in reference to the issue that shed_yield() really does nothing in recent Linux kernels (there was big debate about this at kernel.org). IIRC, there's some kernel parameter that you can tweak to make it behave better, but I'm afraid I don't remember what it is. Some googli

[OMPI users] Open MPI 1.5.4/Intel XE make check failure (CentOS-5.6 x86_64)

hi same issue reported previously http://www.open-mpi.org/community/lists/users/2011/03/15915.php updated to version 1.5.4 for OpenMPI and Intel XE. I tried with 12.0.3.137, 12.0.4.191 and 12.0.5.220 (latest). -> same failure for opal_datatype_test. Cheers, Tru -- Dr Tru Huynh | ht

[OMPI users] Mellanox/Voltaire FCA support

I see that OpenMPI 1.5.x supports the Mellanox/Voltaire FCA MPI Collective Accelerator. Are any special OpenMPI builb options required to use this? Is the feature runtime selectable? Thanks, -Jeff