MPI_Recv Hangs While Receiving Large Array
I'm noticing some strange behaviour with a very simple piece of MPI code:#include <mpi.h> int main(int argc, char* argv[]) { // Initialize the MPI environment MPI_Init(NULL, NULL); int...
View ArticleMPI/openMP segmentation error
Hello,when I run my program on two nodes, and set the number of threads larger than 1 (i.e., 2-16 threads), I've encountered the segmentation error:forrtl: severe (174): SIGSEGV, segmentation fault...
View Articlempsvars error
Dear All,I have successfully installed parallel_studio_xe_2017_update1 in CentOS 7. Installed package is working good. However, I am getting the error when I source it from my .tcshrc file. Please...
View Articlecross-compilation
I would like to buy Parallel Studio XE if cross-compilation is possible. I generate execution modules of 2 GB or more. I actually compiled on Linux. And I confirmed that it is possible. However, I need...
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mpirun errors
Hi,I've been using intel compilers for long time and I'm really impressed about them. Recently I created a small cluster and installed intel parallel studio_xe cluster edition. I wanted to use MPI for...
View Articleoptimized executables for specific processors
We have four clusters composed of nodes of different vintage Intel Xeon processors.Intel(R) xeon(R) CPU E5-2697Intel(R) Xeon(R) E5-2690Intel(R) Xeon(R) x5675Intel(R) Xeon(R) e5530We are using 16U3...
View ArticleMPI_Allreduce is toooo slow
I use the benchmark in Intel MPI (IMB) to measure the performance of MPI_Allreudce over a rack with 25 machines equipped with Infiniband 40G switch. (I use the latest version of parallel studio 2017...
View ArticleTrouble installing Windows MPI runtime environment
Hi,I'm trying to install the Windows MPI Runtime Environment on a Windows 7 / x64 machine for use with some modelling software. I'm using version 5.1 Update 1 (or 5.1.1.110, which is not quite the...
View ArticleHow to use command to install Parallel studio cluster to a specific location
We ordered and installed parallel studio cluster 2017 for our new cluster. However, the cluster management software, Bright, requests to install compiler in a shared directory instead of default one...
View Articlempirun seems to set GOMP_CPU_AFFINITY
It appears Intel MPI is setting GOMP_CPU_AFFINITY, why? How do I prevent this?When I print my env I get:bash-4.2$ env | grep OMP OMP_PROC_BIND=true OMP_PLACES=threads OMP_NUM_THREADS=2When I mpirun...
View ArticleMPI Installer error
I have tried to run several MPI installers (w_mpi_p_2017.2.187.exe , w_mpi-rt_p5.1.3.180, w_mpi-rt_p_4.1.3.047) and all of them failed on my Windows 7 PC. The following error shows up:Error while...
View ArticleTrading App
I'll make a trading app that trades up to 7 assets concurrently (independently). The trading server is accessed through websockets. So each concurrent work/task should open/close a websocket connection...
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A problem in installing the Intel MPI Library w_mpi_p_2017.2.187.exe under...
A problem arise when I am trying to install the last version of Intel MPI Library w_mpi_p_2017.2.187.exe under Windows 10 both on Intel i7-6950X and Intel Core 2 Duo E6750 based PC. Two screenshots are...
View Articlememory problem in I_MPI_WAIT_MODE=1 with shm:ofa fabrics
Hi,We found that when using the wait mode with shm:ofa fabrics, the processes of the MPI program use more memory than the other configurations. In some situations, the program crashes with memory...
View Article[Intel MPI benchmarks] Non-free license of JavaScript files
Intel MPI benchmarks is licensed under the Common Public License, which is approved both by FSF and OSI as a Free Software / Open Source license. However, while packaging Intel MPI benchmarks for...
View Articlempi2017 update2 segfault at libmpifort.so.12.0 when mpirun test
hello: After install parallel_studio_xe_2017.2.050, i try to test mpi like this:in dir "/opt/intel/compilers_and_libraries_2017.2.174/linux/mpi/test" use cmd : "mpiicc test.c -o test "then...
View Articlempi2017 update2 segfault at libmpifort.so.12.0 when mpirun test
hello: After install parallel_studio_xe_2017.2.050, i try to test mpi like this:in dir "/opt/intel/compilers_and_libraries_2017.2.174/linux/mpi/test" use cmd : "mpiicc test.c -o test "then...
View ArticleMPI/openMP segmentation error
Hello,when I run my program on two nodes, and set the number of threads larger than 1 (i.e., 2-16 threads), I've encountered the segmentation error:forrtl: severe (174): SIGSEGV, segmentation fault...
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Abaqus with Omnipath
I am trying to get Abaqus running over an Omnipath fabric.Abaqus version 6.14-1 and using Intel MPI 5.1.2In my abaqus_v.env file I set mp_mpirun_options -v -genv I_MPI_FABRICS shm:tmiBy the way the...
View ArticleIrqbalance update affinity_hint and banned cpus conflict
I have a cluster with Ominpath nodes and CentOS 7.2.On Sunday I upgraded the irqbalance package to irqbalance-1.0.7-6The system is now repeatedly logging /usr/sbin/irqbalance: irq NN affinity_hint and...
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