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>
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Can someone please tell me what does this construct mean: .L_2il0floatpacket.24? Is it mean that the instruction that has it as a third operand will read from memory or is a a label at the assembly level where the instruction is built?
We are running a simple code doing random reads and sequential write (i.e. gather operation) on both the CPU and GPU part of the I7-4770R (separately, one at a time) and experiencing 4x slower performance on the GPU compared to the CPU. When doing sequential reads and writes and even random writes, the performance is very similar indicating that both the internals of the chip as well as the memory controller allows the GPU to access the DRAM with the same speed the CPU does.
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I'm in the process of evaluating the combination of the Intel Media SDK + OpenCL on Linux (using the latest Release of 'MediaServerStudioEssentials2015R6'). For my tests I'm using two Intel NUC5i3RYK. The first NUC is running CentOS 7.1 as described in the 'Intel Media Server Studio 2015 Getting Started Guide'. The second NUC is running a custom embedded Linux created using http://buildroot.uclibc.org/.
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can anyone explain why this code (inside a kernel):
__private char states; for (int i = 0; i < 10; i++) states[i] = 0; states = (char)8; for (int i = 0; i < 10; i++) printf("states[%i] = %p = %i\n", i, &states[i], states[i]); return;
doesn't successfully write "8" at states?