On Jan 12, 2009, at 2:50 PM, kmur...@lbl.gov wrote:
Is there is any requirement on the size of the data buffers
I should use in these warmup broadcasts ? If I use small
buffers like 1000 real values during warmup, the following
actual and timed MPI_BCAST over IB is taking a lot of time
(more
Cross your fingers; we might release tomorrow (I've probably now
jinxed it by saying that!).
On Jan 12, 2009, at 1:54 PM, Justin wrote:
In order for me to test this out I need to wait for TACC to install
this version on Ranger. Right now they have version 1.3a1r19685
installed. I'm
Hi Jeff,
Thanks for your response.
Is there is any requirement on the size of the data buffers
I should use in these warmup broadcasts ? If I use small
buffers like 1000 real values during warmup, the following
actual and timed MPI_BCAST over IB is taking a lot of time
(more than that on GiGE).
In order for me to test this out I need to wait for TACC to install this
version on Ranger. Right now they have version 1.3a1r19685 installed.
I'm guessing this is probably an older version. I'm not sure when TACC
will get around to updating there OpenMPI version. I could request them
to
Justin --
Could you actually give your code a whirl with 1.3rc3 to ensure that
it fixes the problem for you?
http://www.open-mpi.org/software/ompi/v1.3/
On Jan 12, 2009, at 1:30 PM, Tim Mattox wrote:
Hi Justin,
I applied the fixes for this particular deadlock to the 1.3 code base
Hi Justin,
I applied the fixes for this particular deadlock to the 1.3 code base
late last week, see ticket #1725:
https://svn.open-mpi.org/trac/ompi/ticket/1725
This should fix the described problem, but I personally have not tested
to see if the deadlock in question is now gone. Everyone
You might want to do some "warmup" bcasts before doing your timing
measurements.
Open MPI makes network connections lazily, meaning that we only make
connections upon the first send (e.g., the sends underneath the
MPI_BCAST). So the first MPI_BCAST is likely to be quite slow, while
all
On Jan 7, 2009, at 6:28 PM, Biagio Lucini wrote:
[[5963,1],13][btl_openib_component.c:2893:handle_wc] from node24 to:
node11 error polling LP CQ with status RECEIVER NOT READY RETRY
EXCEEDED ERROR status number 13 for wr_id 37779456 opcode 0 qp_idx 0
Ah! If we're dealing a RNR retry
Hi, has this deadlock been fixed in the 1.3 source yet?
Thanks,
Justin
Jeff Squyres wrote:
On Dec 11, 2008, at 5:30 PM, Justin wrote:
The more I look at this bug the more I'm convinced it is with openMPI
and not our code. Here is why: Our code generates a
communication/execution
On Jan 11, 2009, at 3:57 AM, Hana Milani wrote:
make: *** No rule to make target `home/hana/openmpi-1.2.8/include/
mpif.h', needed by `mpif.h'. Stop.
Are you missing a leading "/" somewhere in your Bmake.inc? It lists
"home/hana/" in your error message, not "/home/hana/"
--
Jeff
Hi Aurelien,
Thank you for your answer.
Aurélien Bouteiller wrote:
Hi Thomas,
The message you get comes from the convertor. The convertor is in
charge of packing/unpacking the data. As you add yourself an extra
int to the wire data, the convertor gets confused on the receiver
side, as it
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