MPI peformance snapshot
Hello team,I am using mps(mpi performance snapshot) for analyzing. I installed intel mpi 5.0.3, itac 9.0.3 and intel compiler 15.0.3. I have already created stats.txt and app_stat.txt files but when I...
View ArticleMPI_Comm_spawn strips empty strings from argv
Hi. I'm using Intel MPI 5 on Windows and have the following problem. I have a C++ application that spawns worker processes using MPI_Comm_spawn() and passing parameters via the argv argument. I have...
View ArticleSeg Fault when using US NFS install of MPI 5.1.0.038 from site in Russia
Hello,One of my team members from Russia is accessing a NFS installation of MPI 5.1.0.038 located at a US site. When this team member runs the simple ring application test.c, she encounters a...
View ArticleMPICH3.14 with intel c++ complier on os x 10.10.3,Error:dyld: Library not...
Hi friends:I install MPICH with intel c++ complier on OS X,when I complier the code link with MKL library,and run the code,it gives me error:mpicxx -mkl testcode.cpp -o testcodempiexec -n 3...
View ArticleDebugging Fortran MPI codes in VS2012 and Intel MPI
Hi,Before this I was using VS2008 with ifort 11 and MPICH.I folllowed the 1st mtd (by attaching to a currently running process (one VS window for all selected MPI processes))...
View ArticleVarying Intel MPI results using different topologies
Hello,I am compiling and running a massive electronic structure program on an NSF supercomputer. I am compiling with the intel/15.0.2 Fortran compiler and impi/5.0.2, the latest-installed Intel MPI...
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mpirun with bad hostname hangs with [ssh] until Enter is pressed
We have been experiencing hangs with our MPI-based application and our investigation led us to observing the following behaviour of mpirun:mpirun -n 1 -host <good_hostname> hostname works as...
View ArticleCan each thread on Xeon Phi be given private data areas in the offload model
Hi,I want to calculate a Jacobian matrix, which is a sum of 960 (to be simple) 3x3 matrices by distributing the calculations of these 3x3 matrices to a Xeon Phi card. The calculation of the 3x3...
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Need help making sense of NBC performance (MPI3)
Hello everyone,I am fairly new to parallel computing, but am working on a certain legacy code that uses real-space domain decomposition for electronic structure calculations. I have spent a while...
View ArticleIssue with Intel MPI library on Microsoft Azure machines
Hi,I am trying to setup RDMA between two Azure VMs using Intel's MPI library (v5.1.1.109). Both machines can remotely connect to the other machine using ssh and using the pingpong utility in the...
View ArticleHow to kill MPI program programatically
Dear all,I am having problem destroying Intel MPI program, the original problem is described at this thread.http://stackoverflow.com/questions/32222878/intel-mpi-mpirun-does-not-te...I am using...
View Articlefile not present or wrong filename - when using >=4 procs
Hi,I have an intel i7-4770 cpu.Running my CFD simulation code using 1 - 3procs works well. However, when using >=4 procs, I almost always get 2 lines of the error:file not present or wrong...
View ArticleMPI_Request_free() hangs
Hi,Trying to make use of the MPI persistent communication primitives in our application, I'm ending up with the following sequence of events:MPI_Ssend_init(msg, msg_length, MPI_BYTE, 0, tag, comm,...
View Articleopen MPI e intel MPI DATATYPE
Dear all, I have notice small difference between OPEN-MPI and intel MPI. For example in MPI_ALLREDUCE in intel MPI is not allowed to use the same variable in send and receiving Buff. I have written my...
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clusters of two virtual machines cannot be created ,the master can't access...
I want to create a cluster of two virtual machines. I have followed the file "parallel_studio_xe_2015_update3/doc/Install_Guide.htm#prerequisites". However, when I get the eighth step in...
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a cluster of two virtual machines cannot be created,it said cannot access "my...
I want to create a cluster of two virtual machines. I have followed the file "parallel_studio_xe_2015_update3/doc/Install_Guide.htm#prerequisites". However, when I get the eighth step in...
View ArticleHow to run application without mpiexec?
Greetings forum,I would like to manually start my application (paraview's pvserver) on each node of a windows cluster without using mpiexec. The reason is that the application needs to make visible...
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MPI_Abort fails with TMI fabric
I am finding that MPI_Abort is not killing processes on remote nodes when I_MPI_FABRICS=shm:tmi. The attached PBS job works correctly when the default fabric (shm:dapl) is used, but fails to abort...
View ArticleIntelMPI over Mellanox 10GB RDMA chipset
HiWhat is the best DAPL provider to used with IntelMPI 5.1 when running with a 10Gb RDMA chipsset from Mellanox?Currently I'm using I_MPI_DAPL_PROVIDER=ofa-v2-scm-roe-mlx4_0-1I added some others extra...
View ArticleError using more than 1 node
HELP! I have some code to simply solve Ax=b using an iterative method. I read in a partitioned file and load A and b into each processes unique A and b. Then iteratively try to solve. Everything is...
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