Polling the Xeon Phi
Hi, Is there any function to check if the last asynchronous offload on Xeon Phi has finished or not, so that a new routine can be offloaded? (Fortran)Thanks.
View ArticleHow to use job scheduling library(ex> PBS torque) for KNL ??
Hello.I wonder how to apply job scheduling library for KNL processor.I used KNC coprocessor as GPU through PBS torque for job...
View ArticleKNL RDTSC/TSC synchronization book clarification
The KNL book says (pg. 335) "Care must be taken with RDTSC to ensure it gets executed on the given core by pinning the thread to the corresponding core using taskset or some other mechanism." Then on...
View ArticleCOI_DOES_NOT_EXIST error
Hello all,I a customized application using SCIF and launching the MIC program with "COIProcessCreateFromFile" and I am getting the following error:COI ERROR << COIProcessCreateFromFile(...
View Articleoffload error (signal 11)
I run the attached code with the newly downloaded Intel Parallel Studio 2017 on Intel Xeon Phi 31SP (icc -openmp hello.c -o hello). It reports the following message: offload error: process on the...
View ArticleNo response from Premier Support
I posted a request for support in the Premier support area. It has been 14 days and no one form Intel has responded. Is this typical? How can I get someone to review my issue?
View ArticleIntel MKL FATAL ERROR: Cannot load libmkl_avx512_mic.so or libmkl_def.so.
Hi,I am getting the fatal error:Intel MKL FATAL ERROR: Cannot load libmkl_avx512_mic.so or libmkl_def.so.Any suggestions? The libmkl_avx512_mic.so is found...
View ArticleIndirect function call penalties
The book “Intel Xeon Phi Processor High Performance Programming: Knights Landing Edition” has the following to say about indirect function call penalties due to shared libraries:The indirect branch...
View Articlempiicc -mmic Argument list too long
I am attempting to compile a simple MPI program for native execution on Xeon Phi. I can successfully compile for the host using mpiicc, but when I add the -mmic flag it seems to hang for quite a while...
View Articlelapack least squares slow on Xeon Phi KNL
I'm running a Xeon Phi Knights Landing (64 core) and an Intel i7-6900K side by side for speed comparisons. I'm in Python3, with latest Numpy (1.11.1) linked with all the latest MKL (11.3.3) libraries...
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KNC OMP4.0 fortran offload - subroutine opt args, data serialization,...
Hello all. I'm doing some testing on OpenMP target offload model and have a few questions:In the code attached, what's causing the serialization warnings in regards to f128 data types?I'm trying to set...
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Offload error:size of the source differs from the size of the destination
I am trying to measure the offload costs and achieved bandwidth. I encountered this error:This happened after I reduced the array sizes being transferred after having run out of memory...
View ArticleWriting shared c array sometimes very slow KNL
Edit: moved to https://software.intel.com/en-us/forums/intel-moderncode-for-parallel-architectures/topic/698483Thread Topic: Help Me
View ArticleAttempting Inter-process communication on HBW numa nodes
Hello,I wanted to check if lib memkind has options to realize operations such as mmap to get inter-process communication to work between 2 processes on the same KNL node but with memory being mapped on...
View Articlesyscfg tool for Knights Landing
Hello,I need the "Save and Restore System Configuration utility (syscfg)" for Knights Landing. However, according to the users guide only version 14 is compatible with KNL. The latest version avaliable...
View ArticleWindows KNL
HiI would like to ask if there is a release date for a windows KNL system with KNL as the main processor.TIA, P-
View ArticleXeon Phi & Network API
Dear all,We are building up a Xeon Phi system with a second hand 31S1P card for testing the advantage it may have on running our simulation software.Our code is currently a linux C++ program which...
View ArticleUsing multiple Xeon Phi together
Hi,I'm currently trying to evaluate the performance of Xeon Phi cards for CFD applications. I was able to compile OpenFOAM (openfoam.org) to be used with a Xeon Phi card. I'm currently able to run a...
View ArticleUnable to access the KNC card
Dear all,I have a server running CentOS Linux release 7.2.1511, equipped with a KNC MIC card, using MPSS version 3.3 in order to access and manage the card. The server has been running for about 2...
View ArticleHow to set the eviction hint (EH) with Intel intrinsics or inline assembler?
According to https://software.intel.com/en-us/articles/intel-xeon-phi-coprocessor-vector-microarchitecture:all memory operands in this ISA have an optional attribute called the eviction hint (EH hint)...
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