Heterogeneous computing platforms with multicore host system and many-core accelerator devices have taken a major step forward in the mainstream HPC computing market this year with the announcement of HP Apollo 6000 Sys-tem’s ProLiant XL250a server with support for Intel® Xeon Phi™ coprocessors. Although many application developers attempt to use it in the same way as GPGPU acceleration platforms, doing so forfeits the processing capability of multicore host processors and introduces power inefficiency in corporate IT op-erations.
I need your help.
I tried to run K-means algorithm on Xeon Phi by using offload mode.
But when i tried to get into offload region with the clause '#pragma offload ~~ (as attached pic 1) ' ,
i got an erorr 'offload error: cannot release buffer memory on device 0 (error code 14)' .
I have no idea to solve this problem, and i even cannot find any previous example similar to my problem on google.
I saw offload report by using 'export OFFLOAD_REPORT=3', but i couldn't get any hints.
plz help me !
we have two clusters in-house, one with MIC cards and another without. When we build code with OpenMP 4.x pragmas or functions for devices, we get a compilation error on the cluster without MIC cards:
icc: warning #10362: Environment configuration problem encountered. Please check for proper MPSS installation and environment setup. testomp.c(1): catastrophic error: *MIC* cannot open source file "stdio.h" #include <stdio.h>
I have studied the openmp reduction function kmp_reduce and the conclusion is :
if (lck!=NULL) ==> we can do CRITICAL version
if (reduce_data!=NULL && reduce_func!=NULL) ==> we can do TREE version
if ((loc->flags & KMP_IDENT_ATOMIC_REDUCE) == KMP_IDENT_ATOMIC_REDUCE) ==> we can do ATOMIC version
So i have created 3 flags which tests the conditions above (CRITICAL, TREE, ATOMIC)
I have done some tests of openmp reductions to look at the results of these flags, but it seems to be always at 1.
this is my configuration: VS2015.5RC ultimate, icc 2015.4, INDE professionnal (w_inde_2015.2.027.exe), and intel media samples 22.214.171.124.
I just open sample_common and start build and get many errors (see file attached).
Are you serious Intel ?
Intel® MPI Library is a multi-fabric message passing library that implements the Message Passing Interface, version 3.0 (MPI-3.0) specification. Use the library to develop applications that can run on multiple cluster interconnects.
The Intel® MPI Library has the following features:
Intel has just launched the Intel® Modern Code Developer Community to help HPC developers code for maximum performance on current and future hardware. The initiative is targeted to more than 400,000 HPC-focused developers and partners.