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Questions tagged [intel-mpi]

Intel MPI Library is an MPI implementation by Intel Corporation.

Intel MPI Library is an MPI 3.0 compliant MPI implementation based on the popular MPICH2. It runs on both Linux and Windows operating systems and supports various high-bandwidth and low-latency network interconnects like InfiniBand and Myrinet.

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What is the best job scheduler policy to prioritize small HPC jobs for weak-scaling tests?

I am interested in performing weak scaling tests on an HPC cluster. In order to achieve this, I run several small tests on 1,2,4,8,16,32,64 nodes with each simulation taking less than a minute to maximum 1 hour. However, the jobs stay in queue (1…
nae9on
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What is the use of status of MPI_Isend obtained using MPI_Wait?

Case: 1. What is the use of status obtained using MPI_Wait() if(rank==0) MPI_Isend(&buffer0, count, MPI_INT, 1, 0, MPI_COMM_WORLD, &request0); if(rank==1) MPI_Recv(&buffer1, count, MPI_INT, 0, 0, MPI_COMM_WORLD); if(rank==0) MPI_Wait(&request0,…
Black Heart
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Intel MPI benchmark fails when # bytes > 128: IMB-EXT

I just installed Linux and Intel MPI to two machines: (1) Quite old (~8 years old) SuperMicro server, which has 24 cores (Intel Xeon X7542 X 4). 32 GB memory. OS: CentOS 7.5 (2) New HP ProLiant DL380 server, which has 32 cores (Intel Xeon Gold 6130…
Jae
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IntelMPI error (Works with openMPI)

I am getting this error and was wondering how I fix it. A little background: it works in open mpi but not intel mpi. The error: Fatal error in MPI_Recv: Invalid argument, error stack: MPI_Recv(200): MPI_Recv(buf=0x7fffffff92f0, count=2, MPI_INT,…
Iron Wizard
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connect infiniband with intel mpi or other mpi(like openMPI)

I'm new about how to build a infiniband network, and i have not find some useful url about how to do it in windows OS. I wanna to do that need to connect 5~8 servers with infiniband network in windows OS, and i choose the intel mpi for IB and wanna…
Doc.Q
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How can DAPL offer more functionality than OFA does if DAPL relies solely on OFA as the only layer beneath it?

In my understanding if a system that only has underlying Infiniband connectivity (i.e. not iWarp or anything else which DAPL could use as an alternative) then DAPL exists solely as an abstracted layer on top of OFA/Infiniband. If this is the case,…
Brayme Guaman
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Intel MPI - mpiexec.exe does not run, only gives a blank screen

I have some problem running mpiexec.exe on my computer. I installed intel parallel studio xe cluster edition on my windows 10 laptop, which includes intel-mpi. Then I registered my mpi following this…
shanmu .S
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MPI_Scatter values with repetitions

For example I have 6 MPI nodes forming a 1D grid. On the master process I have some values for the edges of the grid: [1 2 3 4 5] And I want to distribute these values to put each value to both nodes that are adjacent to the corresponding edge.…
Nikolai
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Enable OpenMP support

I have installed Intel MPI on my Windows machine. Quoting section 2.2 of FLANN library documentation: the project that uses FLANN needs to be compiled with a compiler that supports the OpenMP standard and the OpenMP support must be enabled. …
justHelloWorld
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mpirun with multiple executables, reset rank numbers per executable

I am trying to run multiple instances of an mpi executable with one call to mpirun. I am using the following line to start my program from different directories so that it starts with different parameters. mpirun -np 8 -wdir ./S1 $WDIR/S1/$EXE :\ …
lev.tuby
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Crash in Intel MPI_COMM_SPAWN_MULTIPLE

I getting a crash inside MPI_COMM_SPAWN_MULTIPLE when using the Intel MPI implementation and compiling the code with ifort. The same code works without a problem using OpenMPI and compiling with gfortran. The relevant code is posted below. …
user1139069
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Can't run simple mpi program

I recently installed Intel's Cluster Studio, and was testing IMPI. When I try running a simple hello world program using mpirun, the process takes forever, and I have to end it myself. I used the following code: #include #include…
Zack
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