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Intel® Clusters and HPC Technology | Forum profile
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Forum profile page for Intel® Clusters and HPC Technology on http://www.intel.com.
This report page is the aggregated overview from a single forum: Intel® Clusters and HPC Technology, located on the Message Board at http://www.intel.com.
This forum profile page summarizes the general forum statistics such as: Users Activity, Forum Activity, and Top Authors, which are reported in either a table or graph below for a given reporting time period.
Additional forum profile information for "Intel® Clusters and HPC Technology" on the Message Board at http://www.intel.com is also shown in the following ways:
1) Latest Active Threads
2) Hot Threads for Last Week
Warning: These statistics are generated using 'best efforts' and can experience delays and reporting errors at times. Please note that such statistics do not constitute a forum's popularity and/or exact posting volumes at any given reporting period.
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Posting activity on Intel® Clusters and HPC Technology:
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Intel® Clusters and HPC Technology Posting activity graph:
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Top authors during last week:
user's latest post:
Intel MPI 3.2 issue -...
Published (2009-12-22 22:09:00)
Quoting - bamboo7413 Hi, Sorrry for typo. It should be: For the same source code, there's issue when linking 3.2 library . But it's OK if linking 3.1 library . Thanks!
user's latest post:
Intel MPI 3.2 issue -...
Published (2009-12-22 23:27:00)
Quoting - bamboo7413 Hi, I got one issue when upgrading Intel MPI library from 3.1 to 3.2? For the same source code, there's issue when linking 3.1 library. The error log is below: hpc-p-19:18677: open_hca: getaddr_netdev ERROR: Connection refused. Is ib0 configured? hpc-p-17:18094: open_hca: getaddr_netdev ERROR: Connection refused. Is ib0 configured? hpc-p-5:18168: open_hca: getaddr_netdev ERROR: Connection refused. Is ib0...
Gergana Slavova (Intel)
1
user's latest post:
mpiifort / mpiicc / mpiicpc...
Published (2009-12-22 14:41:00)
Hi Peter, I was recently able to get access to a local Ubuntu 9.10 system and ran the installer for the Intel MPI Library. Unsurprisingly, I ran into the same issue as you have: gsslavov@backuppc:~$ mpirun -np 4 hostname /home/gsslavov/intel/impi/3.2.2.006/bin/mpirun: 63: Syntax error: "(" unexpected (expecting "fi") So I did some more digging and this is what I found out: gsslavov@backuppc:~/intel/impi/3.2.2.006$ ls -l...
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Latest active threads on Intel® Clusters and HPC Technology::
Started 1 day ago (2009-12-29 06:07:00)
by tim18
Quoting - bugslayer
I'm trying to use Intel MPI library (evaluation version) instead of LAM/MPI.
But I couldn't find Datatype BOOL in namespace MPI (c++ version) - MPI::BOOL.
The standards support level specified for iMPI 4 (currently available to you as a beta) implies (I think) that this feature should be there. If not, you might ...
Started 1 week ago (2009-12-22 22:09:00)
by bamboo7413
Quoting - bamboo7413
Hi, Sorrry for typo. It should be: For the same source code, there's issue when linking 3.2 library . But it's OK if linking 3.1 library . Thanks!
Started 1 week, 6 days ago (2009-12-16 11:22:00)
by mrentropy
P.S. I should note that on an identical system, also running Ubuntu 9.10, I do NOT have this problem. On that system, I installed Intel MPI when it was 9.04, then upgraded to 9.10 and fixed the libstdc++5 problem. On the system on which I have problems, I installed Intel MPI after upgrading to 9.10 and doing the libstdc++5 fix. I must have messed up something on ...
Started 1 week, 5 days ago (2009-12-17 15:00:00)
by Gergana Slavova (Intel)
Hi Craig,
Quoting - crtierney42
1) MPICH_MAX_SHORT_MSG_SIZE - Determines when to use Eager vs. Rendevous protocol, does this just sound like I_MPI_RDMA_EAGER_THRESHOLD?
Indeed, you're exactly right. I_MPI_EAGER_THRESHOLD (without the RDMA in the name) sets the cutoff value between using the eager or rendezvous protocols for all devices. ...
Started 3 weeks, 5 days ago (2009-12-03 15:00:00)
by Gergana Slavova (Intel)
Hi jaewonj,
That's an interesting use case. Do you mind sharing with us why you're looking to start the daemons within the source code?
I, personally, have only seen the start of the MPD daemons and MPI programs via scripts (be it shell or python) but not within compiled code. Perhaps others on this forum have a different experience. I know that with the Intel ...
Started 9 months ago (2009-04-02 22:58:00)
by Andrey Derbunovich (Intel)
// this is an IE specific issue fix for HTML with " /" characters in it which IE looks at like " /" instead and does not line break it.
$(function(){
if ($.browser.msie)
$("[id^='reply_text_']") .css({"overflow-x":"scroll","overflow-y":"none"});
});
Hi Rene, Yes, we consider possibility to include such functionality ...
Started 2 weeks, 6 days ago (2009-12-10 05:24:00)
by Dmitry Kuzmin (Intel)
Quoting - crtierney42
I am testing out the beta for Intel MPI 4.0. I am having a problem where my application (WRF V3.0.1) is hanging in MPI_Finalize when a large number of cores are being used (>1024). The OS is Centos 5.3 and I am using OFED-1.4.1. Is the the right place to ask questions about the beta? If not, where is? If it is, what options do ...
Started 3 weeks, 1 day ago (2009-12-07 12:28:00)
by Gergana Slavova (Intel)
Hi Richard,
The Intel® Cluster Toolkit or any of its components doesn't really care what networks are available on your system during installation. Because of our architecture, what network fabric you use to run your MPI programs is all tunable at runtime and not something you have to worry about at install-time.
In fact, we have a few customers who start using ...
Started 3 weeks, 5 days ago (2009-12-04 00:00:00)
by tim18
If you are starting MPI jobs manually on the same node, you could use the Intel MPI environment variables to assign each to different cores. Intel MPI sets affinity by default; unless you set each to a different group of cores, each will get the same default. The same would happen in OpenMP if you set affinities, as you must do to get full performance. It's true...
Started 4 weeks, 1 day ago (2009-11-30 11:28:00)
by Andres More (Intel)
On Linux environments... Have you tried powertop? It is a really interesting tool. It works using several features only present on recent kernels to provide an estimate using ACPI information. How to get the tool and a lot more information on power consumption can be found at the following link. http://www.lesswatts.org/projects/powertop/ Hope it helps you...
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Hot threads for last week on Intel® Clusters and HPC Technology::
Started 1 day ago (2009-12-29 06:07:00)
by tim18
Quoting - bugslayer
I'm trying to use Intel MPI library (evaluation version) instead of LAM/MPI.
But I couldn't find Datatype BOOL in namespace MPI (c++ version) - MPI::BOOL.
The standards support level specified for iMPI 4 (currently available to you as a beta) implies (I think) that this feature should be there. If not, you might ...
Started 1 week ago (2009-12-22 22:09:00)
by bamboo7413
Quoting - bamboo7413
Hi, Sorrry for typo. It should be: For the same source code, there's issue when linking 3.2 library . But it's OK if linking 3.1 library . Thanks!
Started 1 week, 6 days ago (2009-12-16 11:22:00)
by mrentropy
P.S. I should note that on an identical system, also running Ubuntu 9.10, I do NOT have this problem. On that system, I installed Intel MPI when it was 9.04, then upgraded to 9.10 and fixed the libstdc++5 problem. On the system on which I have problems, I installed Intel MPI after upgrading to 9.10 and doing the libstdc++5 fix. I must have messed up something on ...
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