ibscif/Infiniband problems
Hello,I am having problems with the actual mpss 3.2 relase in combination with CentOS 5.3 and the Intel 7.2.2.0.8 OFED stack.The kernel version is 2.6.32-279-11.1 so I ahd to recompile the kernel...
View ArticleNetmask for external bridge not set correctly
I am trying to connect Xeon Phi coprocessors to an external bridge with a wider than default netmask. My bridge br0 on the host has IP 10.33.1.2 with netmask 255.252.0.0 (the first 14 bits set). When I...
View ArticleNFS set up with host Windows 7 Enterprise and MIC Linux
I want to share one directory between the host and one coprocessor.Since the support on the host side appears to be only for client, the coprocessor needs to be the server.There is plenty of...
View ArticleTBB's Dynamic Memory Interface Replacement in offloaded code
I would like to try replacing the memory allocator with TBB's scalable memory allocator as detailed here:http://www.threadingbuildingblocks.org/docs/help/tbb_userguide/Automical...I would like to do...
View ArticleSegmentation Fault when using mpirun -f option
Whenever I use the mpirun -f option to run MPI programs on the device, I get a segmentation fault.[user@node ~]$ echo mic0 > mic0.hosts [user@node ~]$ mpirun -perhost 1 -n 2 -f mic0.hosts ./hello...
View ArticleCan't build shared libraries via libtool
I'm trying to port a project as a native Xeon Phi application. The project depends on some third-party libraries (GLib, libxml2, libgmp), and I understand that I have to cross-compile these libraries...
View ArticleOffload error: process on the device 0 was terminated by signal 11 (SIGSEGV)
I have the error message: offload error: process on the device 0 was terminated by signal 11 (SIGSEGV)Compiler flags: icc $(SOURCES) -lOpenCL -fopenmp -O3Offload code:void...
View ArticleXeon Phi Segmentation Fault Simple Offload
I have this simple matrix multiply for offload on Phi, but I get offload error (SIGSEGV) when I run the program below:#include <stdlib.h> #include <math.h>void main() { double *a, *b,...
View ArticleIntel Phi on Centos6.5 with RHEL InfiniBand Stack
Hi, I would like to ask whether it is possible to install Intel MPSS with standard (distributed with OS) RHEL Infiniband stack. In manual...
View ArticleRebuilding MPSS-3.2 (Yocto) release from source
Dear community,I think I have managed to go some steps forward to rebuild the Intel Xeon Phi MPSS-3.2 release (with Yocto, poky, bitbake ...) to add some required features in our installation. Now I'm...
View ArticleHow to get peak performnace in FFT
Hi,I want to get peak performance using batch FFT. I am giving sample code below that i have written. I have compiled on host using command icc -mkl fftcheck.cpp -o fftchecknew...
View ArticleBuyers Remorse
So I can't set up the Xeon Phi in Linux like I need it without it deleting my entire hard drive and I refuse to spend another $3000 just to be able to compile on windows. Now after spending days on the...
View Articlepower monitor on cpu and mic
Dear forum,I've got a question about the energy consumption of my mic code. Here are the specs of my system:cpu code running on: i7-4700 mq 4core (haswell) on my laptop, tdp=47w, windows osmic code...
View ArticleRebuilding MPSS-3.2 (Yocto) release from source
Dear community,I think I have managed to go some steps forward to rebuild the Intel Xeon Phi MPSS-3.2 release (with Yocto, poky, bitbake ...) to add some required features in our installation. Now I'm...
View ArticleHow to get peak performnace in FFT
Hi,I want to get peak performance using batch FFT. I am giving sample code below that i have written. I have compiled on host using command icc -mkl fftcheck.cpp -o fftchecknew...
View ArticleBuyers Remorse
So I can't set up the Xeon Phi in Linux like I need it without it deleting my entire hard drive and I refuse to spend another $3000 just to be able to compile on windows. Now after spending days on the...
View Articlepower monitor on cpu and mic
Dear forum,I've got a question about the energy consumption of my mic code. Here are the specs of my system:cpu code running on: i7-4700 mq 4core (haswell) on my laptop, tdp=47w, windows osmic code...
View Articledgetrf performance drop above 10000
Hi,I'm doing performance testing using mkl composer_xe_2013_sp1.2.144 with the icc version 14.0.2 20140120 compiler and randomly generatoed matrices.when the matrix size gets above 10000, I notice a...
View Articlemic0: lost
Hi !I begin with Xeon Phi and MPI. After a lot of troubles, yesterday I managed to run MPI programs on symmetric mode (both host and co-processor) as well as directly on mic0 after ssh.But today I have...
View ArticleSSH logins to the Phi coprocessor fail if user's shell is not bash or sh
Hello all,I'm just pointing this out because it is not documented somewhere (I think). Because the host's /etc/passwd lines are copied "as is" to the coprocessor, there is a chance that ssh logins will...
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