Like the subject. Anyone know about it?
I was looking to parallelize my code for speedup.
As xeon phi was a NUMA core I used the first touch placement of the data.
while xeon phi is performing better than xeon no doubt, the problem is that totaltime(time for first touch+looptime) is greater.
How do I resolve this issue?
This code when integrated into the main code(cannot post it here) will call state function many times from various different places. So is it possible that even if I dont first touch as I have in the code attached below this overhead is just a onetime problem?
I used Inspector XE to run analysis on a matrix multiplication algorithm, where matrix C = A x B.
Matrices A, B, and C are initialized using dynamic memory allocation. Race condition problem was detected at line 80.
While compiling the CppUTest library, I noticed, that the intel compiler does not find the correct "float.h" header for MSVC2015.
This is the error:
D:\Compiler\Intel\compilers_and_libraries_2016.0.110\windows\compiler\include\float.h(37): fatal error C1083: Datei (Include) kann nicht geöffnet werd en: "../../vc/include/float.h": No such file or directory
I had a look at this float.h file from the intel compiler and saw there an assumption, where the intel compiler expects to find the float.h:
What's going on with cilkplus in gcc? Is it still being actively used and developed?
This link says it's been "supported" for some time: https://www.cilkplus.org/which-license#gcc-development.
Yet it doesn't seem to work with some of the simplest code like below which gives an ICE with gcc.
IPP v9.0 on Mac 10.10.5
I am running into an issue when trying to static link with libippcp.a on Mac. The error that is generated is ...
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: archive member: src/.libs/libA.a(libippcp.a) fat file for cputype (7) cpusubtype (3) is not an object file (bad magic number)
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ar: internal ranlib command failed
make: *** [src/libA.la] Error 1
I want to profile the my MPI application executing on HOST+MIC using symmetric mode execution. I used the following command but it says cannot execute binary. I source the amplxe-vars.sh then used the following
mpirun -host test -n 2 amplxe-cl -collect hotspots -r result-dir1 ./hello : -host test-mic0 -n 4 amplxe-cl -collect hotspots -r result-dir1 ./hello.mic
Can someone help me to profile my MPI application in symmetric mode execution.
As a second option I tried
We are excited to announce the next release of the Intel® OpenMP* Runtime Library at openmprtl.org. This release aligns with Intel® Parallel Studio XE 2016 Composer Edition Update 1.
- Added dynamic/hinted lock implementation that supports OpenMP* locks with hints
- Disabled monitor thread when KMP_BLOCKTIME=infinite
- Improved stack protection with safe C library for string/memory operations
When we use MKL PARDISO multi-threading on, the PARDISO output does indicate multiple number of processors but using top or ksysguard or the windows Task Manager, we see that only one core is exercised regardless of the number of threads we chose to use.
Major version: 11
Minor version: 1
Update version: 1
Product status: Product
Processor optimization: Intel(R) Advanced Vector Extensions (Intel(R) AVX) Enabled Processor