MPI_Sendrecv problem
dear all,I have a problem with MPI_Sendrecv, probably because I do not understand it.In my program I create a Cartesian topology: periods = .FALSE. CALL MPI_CART_CREATE...
View Articleidb discontinued, but mpiexec doesn't know
I've read somewhere that idb was being discontinued. Yet it is still possible to ask for it through the various flavour of mpiexec:[alainm@tagir test]$ which mpiexec mpirun mpiexec.hydra...
View ArticleMPI_TYPE_CREATE_STRUCT error 174
Dear all,this is becoming a nightmare. I have the following program, where i create MPI_TYPE_CREATE_STRUCT and then I try to send it to other processor. It crushes every-time and do not know why.Could...
View ArticleHow do I configure Visual Studio for Intel MPI?
I'm using Visual Studio 2013 and IncrediBuild 5.5 to build apps using Intel Parallel Studio. I've recently downloaded Intel MPI and found that it essentially has a compiler wrapper (mpiicpc) that I...
View ArticleIntel MIC LDAP Issue
Dear Team,In our setup we are having 6 MIC cards on 3 host machines.Out of 6 mic cards, 1 card is not working with ldap authentication.The troubleshooting steps given below:-[root@phi1-mic0 ~]# rpm -qa...
View ArticleIntel MPI Runtime For Windows installer hang
We are seeing a couple of computers (all running Win 7) that are hanging in installation. We ran in installer with the log argument and this is what it shows. We see this with a couple different...
View Articlecpuinfo output from system call different
Hello,I'm using Intel MPI 5.0 and am making a system call inside my fortran program and it returns different values depending on the env. variable I_MPI_PIN_DOMAIN. Why is that? How do I make it give...
View ArticleFortran code aborts beyond 108 nodes
Hi,There is an issue we have been facing for the past few months.We used to use a C code for our simulations. It used to run successfully on 108 nodes (each node has 16 processors), but we could not...
View ArticleIntel MPI 5.0.1.037
Hi,I have two questions about Intel MPI on Micorsoft Windows 7 64bit.The first one concerning about Intel MPI 5.0.1.037. If I executeC:\Program Files (x86)\Intel\MPI-RT\5.0.1.037\em64t\bin\smpd...
View ArticleProblem in running mpirun command through newly created user
Hi Team,I am facing a problem while running mpirun command through newly created user.Package ID: l_mpi_p_4.0.3.008Any help will be highly appreciated.Regards.
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-perhost not working with IntelMPI v.5.0.1.035
-perhost option does not work as expected with IntelMPI v.5.0.1.035, though it does work with IntelMPI v.4.1.0.024: $ qsub -I -lnodes=2:ppn=16:compute,walltime=0:15:00 qsub: waiting for job...
View Article[6] Assertion failed in file ../../segment.c
Hi, we have compiled our parallel code by using the latest Intel's software stack. We do use a lot of passive RMA one-sided PUT/GET operations along with a derived datatypes. Now we are expericincing...
View ArticleIntel MPI issue with the usage of Slurm
To whom it may concern,Hello. We are using Slurm to manage our Cluster. However, we met a new issue of Intel MPI with Slurm. When one node reboots, the Intel MPI will fail with that node but manaully...
View ArticleProblems reading HDF5 files with IntelMPI?
Hi,is anyone aware of troubles with PHDF5 and IntelMPI? A test code to reads an HDF5 file in parallel has trouble when scaling if I run it with IntelMPI, but no trouble if I run it, for example, with...
View ArticleDAPL works but OFA not
Dear Intel colleagues,I have just set up a new diskless cluster. Running IMB "Pingpong" with -genv I_MPI_FABRICS shm:dapl shows promising performance. But with -genv I_MPI_FABRICS shm:ofa things never...
View ArticleFatal error in MPI_Init: Other MPI error, error stack: MPIR_Init_thread(264):...
Hello,I am running Intel MPI for Intel mp_linpack benchmark (xhpl_em64t).Steps:1. I sourced the mpivars.sh from /opt/intel/impi/bin64/mpivars.sh2. I did "mpdboot -f hostfile"$ cat hostfile node 1 node...
View ArticleUsing IMB to test multiple host p2p communications simultaneously
I was wondering if we can use the -multi option in IMB to test multiple p2p MPI connections. In a cluster of 2M nodes can we instruct IMB to create M p2p MPI communications simultaneously, with each...
View ArticleIFORT constant numbers
Hello,I have frequently heard that in C++ HPC xeon phi applications, it is beneficial to declare variables as const, if possible. However, I cannot seem to ascertain whether or not this is possible in...
View ArticleTuning Intel MPI for Phi
Does setting I_MPI_MIC=enablechange other MPI environment variables, particularly any that would tune MPI for the MIC system architecture? As a side question, has anyone written a Tuning and...
View Articlempiexec hang after program exit
Out product includes GUI and engine parts. Intel MPI 4.1 was used in engine code. GUI will can engine through mpiexec. Everything works fine on Windows 7 and Windows server 2008. When we run the...
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