data transfer issue on MIC
Hello!I'm optimizing an application with Xeon Phi 5110P. And its initialization part looks as below:#include <stdio.h> #include <stdlib.h> #include <string.h> typedef struct { float...
View ArticleCannot execute binary error on an Intel Xeon Phi
I am having a C code that compiles and runs properly locally on my machine. But when I am trying to compile with the icc and the -mmic flag and test it on Intel Xeon Phi, I am getting the following...
View ArticleError while offloading a parallel region
Hi,I have written my first offload program in fortran which is displayed below. The program can get out of the parallel region where I was able to printout the values of variables ener1 and ener2....
View Articleoffload_signaled documentation
In the C++ (v16.0 update 1) documentation:Determining if Code has Completed Running on a CoprocessorTo determine if a section of offloaded code has completed running on a given coprocessor, you can use...
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offload error: cannot find offload entry with 16.0.1
After a system and compiler upgrade my previously working program now gives the following error during an offload:offload error: cannot find offload entry...
View Articleissues with offload and #include
Hi!I have this code://#include <string> #pragma offload_attribute (push, target(mic)) #include <algorithm> #include <numeric> #pragma offload_attribute (pop) int main() { #pragma...
View Articlehybrid MPI/OpenMP with MICs - I cannot execute across MICs inside different...
Dear All,I am working on a cluster with several MICs attached to it. The co-processors are distributed in four HP Proliant SL250s Gen8 computing nodes, with 2x Intel Xeon E-2660 and 3x Intel Xeon Phi...
View ArticleTip - over subscription
I have a peculiar application requirement for a hybrid application using C# + C++ + Fortran + MIC OffloadsThis is an atypical program design whereby the offloads do not contain any !$OMP PARALLEL...
View ArticleIs it necessary to use "-offload-option,mic,compiler" to specify search...
Dear all,recently I'm new to MIC and I follow Intel MKL link line advisor to wrote Makedown like this:TK_INC_PATH ?= /opt/intel/mkl/include TK_LIB_PATH ?= /opt/intel/mkl/lib/intel64 MIC_LIB_PATH ?=...
View ArticleAllocation overlaps with existing allocation?
Hi, all!I am going to parallelize a program, so I replace a two-demensions array with a one-array like this(simplified):float *ptr[N]; for (int i = 0; i < N; i++) ptr[i] = new float[M];...
View ArticleArithmetic operations with KNC intrinsics
I'm working on some simple examples of using the Xeon Phi with intrinsics. Is something like the following supported? Or am I missing something really obvious?#include "immintrin.h" int main(int argc,...
View Articlesshfs
Hello all,Our cluster has a number of nodes with each 2 mics. One of the things I can't seem to get working is access to our scratch space wich makes use of gpfs. I was thinking sshfs would be the most...
View ArticleXeon Phi Cilk Offload: problem with libraries
I try to use Cilk_offload on host + Xeon Phi. test.cc:#pragma offload_attribute (push,target(mic)) #include <vector> #include <string> #pragma offload_attribute (pop) #include...
View ArticleIntel xeon Phi on debian 8.3
Good afternoon! I am trying to install the mpss to Debian 8.3Installation errors occur:mv: can not stat '/etc/mpss/mpss.service': No such file or directorymv: can not stat '/etc/mpss/micras.service':...
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[Offload mode] How can MIC and CPU run at the same time and exchange data...
Or is there a technique to get CPU and MIC do their own calculations at the same time, while communicating to each other periodically?How can I use only the master thread and hang up other threads in...
View ArticleMKL BLAS function only run 20 threads on MIC
Hi,I am trying to use MKL routines on MIC.But I noticed that the performance is slower than my CPU version. And there are only 20 threads running.Is that limited by MKL? I did some settings on the...
View ArticleC612 and 5110P 75-80 C degrees
hello,I am running my application and have noticed temperatures in the mid 70's to 80's.Should I be concerned?At what temperature threshold should I shutdown the co-proc?thanks!
View Article[MPSS 3.6.1, Windows] Cross compiling with -std=c++11 fails
Hi!I upgraded from MPSS 3.4.6 to 3.6.1 today and am now facing difficulties compiling my native MIC application.Including <algorithm> and compiling with C++ 11 produces a slew of errors in...
View Articlecannot start mpss service
Dear All,I install mpss-3.6.1 on CentOS 7, but cannot start mpss service: Job for mpss.service failed. See 'systemctl status mpss.service' and 'journalctl -xn' for details.I also failed to...
View ArticleMPSS 3.5.2 MLNX OFED 2.3.2 Infiniband problems Centos 6.6
Hi,I have installed MLNX_OFED_LINUX-2.3-2.0.0 with MPSS 3.5.2 and I'm getting the next error in the output of ibv_devinfo:Failed to query device propshca_id: mlx4_0 node_guid:...
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