[mvapich-discuss] Question on MVAPICH Contribution

[Panda, Dhabaleswar]

Thanks for your note. Yes, the support is available with "ch3:mrail" device and it only support "gen2".

DK

________________________________________
From: mvapich-discuss-bounces at cse.ohio-state.edu <mvapich-discuss-bounces at mailman.cse.ohio-state.edu> on behalf of Amirhossein Sorouri <amirsorouri26 at gmail.com>
Sent: Sunday, January 5, 2020 10:45 AM
To: mvapich-discuss at cse.ohio-state.edu
Subject: [mvapich-discuss] Question on MVAPICH Contribution

Hello
My name is "Amir Hossein".
I am a master student and my thesis is about developing an IPC model based on CMA. So we find MVAPICH the only tools that support CMA, specifically "process_vm_readv/writev". Based on userguides.PDF on the website and also based on my Experienc on building it multiple times using that userguide, MVAPICH only supports CMA on "ch3:mrail" device and it only support "gen2" rdma. So when the installation done and we try to test some "hello world" MPI program on an ordinary system that means it doesn't have Infiniband device, we face the following errors:
1- MPID_Init(396)...................: channel initialization failed
2- MPIDI_CH3_Init(410)..............: rdma_get_control_parameters
3- rdma_open_hca(575)...............: No IB device found

I read "configure" and some related makefiles and I find no way to build MVAPICH in a way that it [Uses CMA for local communication + Dont want IB device].
The question is "Is there a way that we can build MVAPICH that [Uses CMA for local communication + Dont want IB device]??
If yes or not, I appreciate someone give me advice.

Thank you