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Subject: Re: [OMPI devel] locked memory consumption with openib and spawn
From: Ralph Castain (rhc_at_[hidden])
Date: 2012-02-27 22:49:04

I believe that's the subject of several tickets…

On Feb 27, 2012, at 8:24 PM, Eugene Loh wrote:

> In the test suite, we have an ibm/dynamic/loop_spawn test that looks like this:
> for (...) {
> loop_spawn spawns loop_child
> parent and child execute MPI_Intercomm_merge
> parent and child execute MPI_Comm_free
> parent and child execute MPI_Comm_disconnect
> }
> If the openib BTL is involved and you run long enough, it appears that you run out of locked memory. Does anyone have a sense for whether that is expected or it shows a resource leak?
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