[openib-general] oops with ipath and mvapich (branch 1.0)

[ralphc at pathscale.com]

> Hello Ralph,
>
>
> Thanks for sharing the info.
>
>> Then I built svn/gen2/trunk/src/userspace/mpi/mvapich-gen2.
>> I was able to get osu_latency & osu_bw to run using:
>> mpirun_rsh -np 2 -debug -hostfile ./mf ~/mvapich1/bin/osu_latency
>> but when I run it without -debug, I get a "Connection refused"
>> error message.
>>
>> I tried osu_bcast and osu_bibw with -debug but they just print
>> the initial header and then hang.
>
> Hmm ... I'm wondering if you really meant to say that WITH -debug flag
> you get "Connection Refused" and WITHOUT -debug, you get only the header
> followed by a hang?
>
> I ask this because -debug forwards X from the remote node to your X
> server, so you can debug different processes in xterms. In case your SSH
> is not configured to forward X, then you may get that "Connection
> Refused" message.
>
> Another quick question. Did you use -DADAPTIVE_RDMA_FAST_PATH instead of
> -DMEMORY_SCALE in make.mvapich.gen2 as per Matt's suggestion (earlier in
> this email thread)? I'm wondering if you could give that a shot and
> verify if that works on your platform?
>
> Thanks,
> Sayantan.

I stated it correctly the first time which is why I was surprised
that running the program in the debugger worked but not without
the debugger.  Now of course both are working so I'm not sure
what was the problem earlier.

I haven't tried -DADAPTIVE_RDMA_FAST_PATH since -DMEMORY_SCALE
seems to be working for me.
I will try it too and report back.