Hybrid OpenMP/MPI doesn't work with the Intel compiler
Greetings,We provide the full Intel Cluster compiler suite of software on our cluster which uses Torque/Moab. Last week one of my users complained that his Hybrid OpenMP/MPI code wasn't running...
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Using MPI in parallel OpenMP regions
Hi all,I am trying to call MPI from within OpenMP regions, but I cannot have it working properly; my program compiles OK using mpiicc (4.1.1.036) and icc (13.1.2 20130514). I checked that it was linked...
View ArticleSlowdown p2p MPI calls
Dear MPi users,I'm using IntelMPI cs-2011. My code (OpenMP + MPI) does for each time step some send and receive MPI calls after a kernel computation. MPI calls are used for ghost cell exchange. (few...
View ArticleMPI 4.1.0.024
HiI've got MPI installed v4.1.0.024 and if I do run a test program "Hellow world" on one node with 12 cpu it does work, but if I run the program on two nodes (24cpu) it does not and I am getting...
View ArticleClimate applications
please ,if anybody have any idea of how to install climate ocean modeling i am new to it, i need following application installtion and running steps.POPWRFhycomnemo
View ArticleVT_LOGFILE_PREFIX not working with Intel trace collector
I am using Intel trace collector. For small simulations it works fine but for large runs I get following error:[20] Intel(R) Trace Collector ERROR: Failed writing buffer to flush file...
View ArticleMPI run crashes on more than one node
Hi everyone,I'm using MPICH2 v1.5 to run my WRF model on INTEL Xeon Processors. I can run on one node with as many cores as I want but if it exceeds the number of porcessors in a core it will crash...
View Articletmi
Hello everyone,I am trying to use tmi fabric for intel mpi library but when i run my application with dynamic process management using MPI_Comm_spawn, application fails to run, but if i run without any...
View ArticleI_MPI_PERHOST variable not working with IntelMPI v4.1.0.030
Setting the I_MPI_PERHOST environment does not produce the expected behavior with codes built with IntelMPI v4.1.0.030, while codes built with IntelMPI v4.1.0.024 do. See below for a description of...
View ArticleIntel MPI Benchmarks Reported Numbers Clarifications
I have a simple question: does the latest Intel MPI Benchmarks report bandwidth in powers of 10, such MegBytes / sec (or 106) or in powers of 2, such as, MegaBinaryBytes / sec (or 220) ?We need to...
View ArticleIntel Trace Collection / Analysis including user functions and H/W counters
Hello,we are trying to collect/analyze traces from an IntelMPI (4.1.1X) based application and we would also like to have basic performance information collected for user functions and if possible use...
View Articleabout MPI benchmark 4.0 tests
Hi, Dear Sir or Madam,I am testing your MPI benchmark 4.0 on my computer. but the following error occurred when building IMB-IO.EXE,1 IntelliSense: expected an identifier...
View Articledynamic process management with tmi
Could someone from the forum confirm that dynamic process management (MPI_Comm_spawn) is supported with the tmi in intel mpi? I have not been able to resolve the following issue with tmi option.[0] MPI...
View ArticleProfiling of user functions using ITAC
Hello,If I try to get a traceview using "-trace" as a linking-option i get the traceview as I exspected. But in addition I want to get detailed information about the userfunctions which is the reason I...
View ArticleSupported MPI implementations
Does Intel Trace Analyzer support any other commercial/free MPI implementations besides the Intel MPI?Kevin
View ArticleIMB 4.0 bug report with RMA side
Hi Sir/Madam,When I was running the latest IMB 4.0 which supports MPI-3 RMA, I found an issue with the benchmark. The benchmark didn't call MPI_Win_free to free the window when the benchmark exits. The...
View ArticleProblem with MPIRUN run on multi-nodes Under LINUX
HI, Dear Sir or Madam,I am testing the Intel MPI benchmar under RedHat Linux with 2 computers: node1-rh(8 cores) and node2-rh(8 cores). After I enter the following command on the local...
View ArticleProblem with MPI_SCATTERV
Hi All,I ran into a problem with MPI_SCATTERV. When the sendcounts (scounts) is the same for every process, it works fine, but if the sendcounts is different, (e.g., 1, 2, 3, 4 for 4 processes) there...
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mpiexec.hydra -ppn 1 and intel-mpi 4.1.2.040
I have just installed intel-mpi 4.1.2.040 onf a cluster... If I used mpiexec.hydra to start jobs one per node... it still spawns processes on all available resources... mpiexec.hydra -ppn 1 hostnameon...
View ArticleMalfunctioning of some MPI subroutines with Ifort Compiler for Windows
Hi,I started recently programming with the MPICH2 library associated to the Intel Visual Fortran composer for Windows. Even if my test code recognize the MPI library, many of the MPI simple subroutines...
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