Essential doubts about MIC MPI Openmp
Hello guys! This is my first post here so apologies so far.Recently I've started studying MIC but there as some things that I just can't understand and are necessary for my further understanding.Here...
View ArticleMPSS 3.1.x installation on Ubuntu 13.10
Hi, i'm having issues on MPSS 3.1.x installation on Ubuntu 13.10, these are what i have done: # 1. download and extract SuSE package aria2c...
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L2_DATA_WRITE_MISS_MEM_FILL during sequential memory access
Hey all,I'm currently analyzing a fully vectorized and parallelized program with vtune. It is written in Intrinsics and OpenMP pragmas. The vtune general exploration showed, that the program has some...
View ArticleMYO "ours" address mapping
On a host (Xeon Nehalem and later) you have NUMA architecture. When configured for NUMA, an application has an API to specify which node an allocation is to be performed on, alternately "first touch"...
View ArticlePhi Boot Hangs in Windows 7 Pro
I have been working to get a 3000 series running under windows pro x64 and i think that i am very close but still have an issue that i cant get past. I was able to flash the card with mpss 3.1.2...
View Articlemkl_lapack_dlacpy
Hi,I get the following error when I use Compiler Assisted Offload -On the sink, dlopen() returned NULL. The result of dlerror() is "/tmp/coi_procs/1/5052/load_lib/icpcout0f7Z77: undefined symbol:...
View ArticleNetwork Configuration of Intel Phis in InfiniBand Clusters
We have a cluster with nodes connected by FDR IB and with 2 Intel Phis per node.Some basic Q:To support "symmetric" Intel Phi compute mode (some MPI ranks on Phi cores some on xeon cores), I need to...
View ArticleTypo doc
Hello Intel,There is big typo into the doc (online)http://software.intel.com/en-us/node/461034orhttp://software.intel.com/sites/products/documentation/doclib/iss/2013/c..._mm512_cvt_roundpd_epi32lo...
View ArticleSCIF user-mode documentation?
Does anyone have a line on the SCIF user-mode documentation referred to in table 1-2 of the "Intel Xeon Phi System Software Developer's Guide" (SKU# 328207-002EN June, 2013)? Supposedly there's a...
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Crank-Nicolsan scheme to solve heat equation in fortran programming
I am trying to solve the 1d heat equation using crank-nicolson scheme. And for that i have used the thomas algorithm in the subroutine. Can you please check my subroutine too, did i missed some codes??...
View Article__m512i _bswap endianness in C/C++?
This might be a noob question, but is there a way to perform a byte swap between big and little endian on a __m512i vector without having to iterate through each value? I really want to avoid using...
View ArticleInstalling MPSS 3.1 on Ubuntu
I am trying to install mpss 3.1 on ubuntu 13.10 with kernel 3.11.0.15 but I am facing some issues.Here are the steps I am following:1. mkdir driver daemon boot scif 2. sudo apt-get install rpm2cpio...
View ArticleFile I/O within the Offload Region
Hello,I am trying to test the default code for "Performing File I/O on the Coprocessor" at the end of Chapter 7 in Intel Xeon-Phi Coprocessor High Performance Programming by Jim Jefferies and James...
View ArticleUsing with Linux 3.13+
Hello,I just ordered my first Xeon Phi Coprocoessor wtih DELL 7610 workstation. I am planning to install Fedora 20 with linux kernel 3.13.x or 3.14 on this machine. I see that these kernels support...
View ArticleCRANK-NICOLSON SCHEME TO SOLVE HEAT DFFUSION EQUATIONI
QUESTION: Heat diffusion equation is u_t= (D(u)u_x)_x. Modify this program to investigate the following developments: Allow for the diffusivity D(u) to change discontinuously, with initial data as...
View ArticleUsing MKL inside #pragma offload region
Hi, I have problems with the exact same thing every time - linking with MKL when using compiler assisted offload.1. When I build offloaded code that does not make any MKL calls in the offloaded...
View ArticleCannot create users on cards with micctrl
Hello,we have a cluster where nodes have 2 Intel Phis each. I have been installing MPSS 3.1.2, on a test node and the 2 Phis and I have reached a point were I can compile and run off-loaded code on the...
View Articledebugging remotely on MIC
Hello,I am trying to run gdb on the mic and i get the following error:HYDU_create_process (./utils/launch/launch.c:111): execvp error on file /tmp/gdb (No such file or directory)but i did copy the gdb...
View Articlehpl-2.0 on 2 MIC cards
Hi, I'm trying to run hpl-2.0(which is downloaded and compiled manually by me) on the Host system + 2 MIC cards. It fails with following error:rank = 25, revents = 29, state = 1 Assertion failed in...
View ArticleHPL benchmark on MIC
Is there any procedure or guide for Running HPL benchmark on MIC cards? I've a system with two MIC cards.The Host system has 128GB memory. How I should set the problem size, PxQ values?
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