Dave,
These settings tell ompi to use native infiniband on the ib qdr port and
tcpo/ip on the other port.
From the faq, roce is implemented in the openib btl
http://www.open-mpi.org/faq/?category=openfabrics#ompi-over-roce
Did you use
--mca btl_openib_cpc_include rdmacm
in your first tests ?
George,
I cannot acces parsec : http error 403 :-(
I understand your point of view.
Back to the opal_lifo test, and if i remember correctly, it hangs in the non
multi threaded part : the very first pop loops forever since cas always fails
in comparing values that are equal indeed.
Though there
With last night's master tarball (openmpi-dev-845-ga3275aa) on a
Linux/x86-64 system, I am seeing a crash (below) from ring_c run on a login
node. Other than CC/CXX/FC settings I've configured with only --prefix=...
--enable-debug --with-tm=...
This is occurring with at least the Gnu, Intel, Path
On Fri, Feb 6, 2015 at 8:54 AM, Gilles Gouaillardet <
gilles.gouaillar...@gmail.com> wrote:
> George,
>
> Can you point me to an other project that uses 128 bits atomics ?
>
http://icl.cs.utk.edu/parsec/. It heavily uses lock-free structures, and
the 128 bits atomics are the safest and fastest wa
The following in orte/mca/ess/alps/Makefile.am assumes a GNU (or GNU-like)
compiler:
mca_ess_alps_la_CPPFLAGS = $(ess_alps_CPPFLAGS) -fno-ident
If building with PGI, the result is
pgcc-Error-Unknown switch: -fno-ident
when compiling orte/mca/ess/alps/ess_alps_component.c
This is last night's
Yes, this time I really mean "fifo", not "lifo". ;-)
With last night's master tarball (Open MPI dev-845-ga3275aa) configured
with only --prefix and --enable-debug
A Linux-86-64 system running debian Wheezy and compiler = "gcc (Debian
4.7.2-5) 4.7.2"
Failure from "make check":
/home/phargrov/OMP
With a newer master tarball I still see PGI + libfabrics failing, but with
different errors this time. Relevant output from "make V=1" appears below.
Though the build below was with pgi-10.9, I see the same problem with other
PGI compiler versions (at least 11.9 as well) on the same system (and w
George,
I can check with my guys on Monday but I think the bandwidth
parameters
are the defaults. I did alter these to 40960 and 10240 as someone else
suggested to me. The attached graph shows the base red line, along with
the manual balanced blue line and auto balanced green line (0's for
Dave,
Based on your ompi_info.all the following bandwidth are reported on your
system:
MCA btl: parameter "btl_openib_bandwidth" (current value:
"4", data source: default, level: 5 tuner/detail, type: unsigned)
Approximate maximum bandwidth of interconnec
We have nodes in our HPC system that have 2 NIC's,
one being QDR IB and the second being a slower 10 Gbps card
configured for both RoCE and TCP. Aggregate bandwidth
tests with 20 cores on one node yelling at 20 cores on a second
node (attached roce.ib.aggregate.pdf) show that without tuning
t
Hi folks
Just a heads-up that I will be starting to work this weekend on shifting the
current pmix server in ORTE to a new framework so we can support both our
internal pmix support and users of the soon-to-be-released external PMIx client
library. Please let me know if you are, or plan to, be
George,
Can you point me to an other project that uses 128 bits atomics ?
In my tests, i noticed that the volatile keyword is (one of) the trigger of the
compiler bug.
At this stage, i could not see anything wrong in ompi, plus this is working
fine with recent gcc and icc, so i concluded this i
My feeling is that the current patch hide the symptoms without addressing
the real issue.
As a side note: The compiler incriminated in this thread, works perfectly
for 128 bits atomic operations in other projects where I use atomic LIFO &
FIFO (but not the one from OMPI as I already raised my conc
It seems the ompi_free_list_init() in libnbc_open() failed for some reason.
That would explain why mca_coll_libnbc_component.active_requests is not
initialized and hence crash in libnbc_close().
This might help, but still doesn't explain why the free list initialization
failed:
diff --git a/ompi/m
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