Intel® Developer Zone:
Intel® Clusters and HPC Technology

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A forum for HPC experts and enthusiasts to share their knowledge, resources, and insights for the advancement of HPC solutions, cluster solutions, and the computing architectures that implement them. Other useful information: Intel® MPI Library support resources, Intel® Trace Analyzer and Collector support resources, and Product Information

Prior to posting here, take a look at the Intel MPI Library Troubleshooting section in the latest User's Guides, as that might have the solution you need:

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Topic / Topic starter Post date Replies Last Postsort ascending
Sticky topic Sticky: Register for the Intel® HPC Developer Conference
by James T. (Intel)
Wed, 10/18/2017 - 13:41 0
by James T. (Intel)
Wed, 10/18/2017 - 13:41
Sticky topic Sticky: Intel MPI Library Troubleshooting Guide
by Gergana S. (Intel)
Mon, 07/27/2015 - 14:47 2
by Gergana S. (Intel)
Tue, 05/16/2017 - 15:22
Sticky topic Sticky: Tutorial on analyzing hybrid OpenMP+MPI applications
by Gergana S. (Intel)
Wed, 11/02/2016 - 15:36 0
by Gergana S. (Intel)
Wed, 11/02/2016 - 15:36
Normal topic ITAC error during trace collection
by Igor P.
Sun, 02/25/2018 - 02:28 0
by Igor P.
Sun, 02/25/2018 - 02:28
Normal topic OPA driver for Skylake running Ubuntu 16
by David O.
Mon, 02/19/2018 - 09:23 0
by David O.
Mon, 02/19/2018 - 09:23
Normal topic drastic reduction in performance when compute node running at half load
by Thekkethil, Namshad
Thu, 12/07/2017 - 06:01 3
by Mikhail Shiryae...
Sun, 02/18/2018 - 15:13
Normal topic Python MPI4PY ISSUE
by AKOLKAR, RAHUL
Fri, 02/16/2018 - 21:51 0
by AKOLKAR, RAHUL
Fri, 02/16/2018 - 21:51
Normal topic Performance issues with Omni Path
by silvio stanzani
Fri, 02/02/2018 - 05:19 3
by Mikhail Shiryae...
Thu, 02/15/2018 - 10:28
Normal topic MPI Bi-band benchmark shows MPI cannot exploit full duplex transmission mode
by seongyun k.
Mon, 01/16/2017 - 16:50 3
by Mikhail Shiryae...
Wed, 02/14/2018 - 13:12
Normal topic Performance degration with larger message on knl(>128M)
by Zhoulong J. (Intel)
Tue, 07/25/2017 - 22:24 1
by Mikhail Shiryae...
Wed, 02/14/2018 - 12:49
Normal topic How do disable intra-node comminucation
by Moore, John
Mon, 10/30/2017 - 10:25 2
by Mikhail Shiryae...
Wed, 02/14/2018 - 11:51
Normal topic MPI_Mprobe() makes no progress for internode communicator
by Toby I.
Mon, 10/16/2017 - 09:11 1
by Mikhail Shiryae...
Wed, 02/14/2018 - 11:46
Normal topic problem with intel mpi 2019
by Sergey P.
Tue, 02/13/2018 - 10:15 1
by James T. (Intel)
Wed, 02/14/2018 - 06:04
Normal topic How to get the exit code from mpiexec.hydra
by Rachitha P. (Intel)
Tue, 02/13/2018 - 11:14 0
by Rachitha P. (Intel)
Tue, 02/13/2018 - 11:14
Normal topic Measuring data movement from DRAM to KNL memory
by Md Fazlay R.
Fri, 08/04/2017 - 16:47 5
by McCalpin, John
Thu, 01/25/2018 - 07:49
Normal topic mpi calling external mpi program failed
by balabi b.
Wed, 01/24/2018 - 22:30 0
by balabi b.
Wed, 01/24/2018 - 22:30
Normal topic problems using PSM2 "Trying to connect to a HFI (subnet id - 0)on a different subnet - 1023 "
by silvio stanzani
Tue, 01/23/2018 - 14:05 0
by silvio stanzani
Tue, 01/23/2018 - 14:05
Normal topic Timers of PCH
by choi, minseok
Thu, 01/18/2018 - 23:09 0
by choi, minseok
Thu, 01/18/2018 - 23:09
Normal topic peak floating point operations of Intel Xeon E5345
by Farea, Afrah
Tue, 01/09/2018 - 21:25 1
by McCalpin, John
Mon, 01/15/2018 - 10:19
Normal topic Intel MPI on 2 Windows 7 machines
by Andy
Wed, 10/05/2016 - 10:44 3
by Andy
Tue, 01/09/2018 - 14:01
Normal topic Cannot correctly write to a file with MPI-IO and indexed type
by JG
Thu, 12/21/2017 - 06:30 2
by JG
Mon, 01/08/2018 - 01:30
Normal topic Error Loading libmpifort.so.12
by Eker, Ali
Tue, 12/19/2017 - 11:01 0
by Eker, Ali
Tue, 12/19/2017 - 11:01
Normal topic HPCC benchmark HPL results degrade as more cores are used
by Wilson P.
Thu, 12/07/2017 - 08:36 5
by McCalpin, John
Fri, 12/08/2017 - 09:25
Normal topic Slowdown of message exchange by multiple oders of magnitude due to dynamic connection
by Michael A
Thu, 12/07/2017 - 07:56 0
by Michael A
Thu, 12/07/2017 - 07:56
Normal topic Fata Error using MPI in Linux
by guccione, pietro
Tue, 11/28/2017 - 04:14 0
by guccione, pietro
Tue, 11/28/2017 - 04:14
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