[mvapich-discuss] mvapich infiniband with LMC. How to set rank-lid?

[Matthew Koop]

Hi,

First, are you using MVAPICH or MVAPICH2 and what version? Right now when
using LMC each port will get multiple LID values. MVAPICH will take
advantage of these various LIDs (and new paths) to increase performance.

As such, in MVAPICH2 a single process can be associated with multiple
LIDs. Is there some reason you need to do specific process-LID mapping?

Thanks,

Matt

On Fri, 13 Feb 2009, wind wind wrote:

> The documentations says that mvapich and IB support LMC. How to set a
> specific MPI process to a specific LID ?  ïpensm can create new lid
> device (in LMC mode). In mvapich also have a flag for enable of LMC,
> but the MPI process (rank) does not take created miltiLID. How to set
> ratio rank-lid ?
>
> suggestions?
>
> Thank you!
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