auto vectorized and auto parallelized only interested loop.
Hi all,It turn out one of the loop I was interested in offloading to MIC as per optimization report suggested it was both auto vectorized and auto parallelized.What I would want is only auto...
View Articleproblem in setting threads at MIC
hi all,This a program, I had written in fortran.!dir$ offload begin target(mic) call omp_set_num_threads(240) !dir$ end offload!dir$ offload begin target(mic) !$omp parallel print *,The number of...
View ArticleIntel Xeon Phi - VPU registers
Hi,I have a question about VPU. How many registers phisical the MIC VPU has got? 32 or 128?
View ArticleNeed Phi Optimization Expert to work on new project for Road Material Simulation
Hi,We require a Intel Phi processor optimization expert to help with optimization FORTRAN code for road material stress simulation. The models have been coded and are working, just need a guru to help...
View ArticleGateway not set for mic0 when br0 is dhcp
So I cannot seem to get the default route set for my mic cards except by manually doing so after logging on to them.I have a system with 2 MIC cards in it. The cards are bridged with eth0 on the host...
View ArticleRebuilding MPSS locally
I am buildling MPSS-3.5 and I am facing two issues:First is the --same-order vs. -c option of tar mentioned above (also see https://lists.yoctoproject.org/pipermail/yocto/2013-October/016540.html)...
View ArticleRebuild modules for newer kernels fails
Hi, the systems hosting the MICs have been updated and hence the mpss must be updated.Information:Linux compute-19-17.local 3.19.1-1.el6.elrepo.x86_64 #1 SMPmpss-3.5-linux.targcc version 4.4.7 20120313...
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Advanced Computer Concepts for the (Not So) Common Chef: The Home Kitchen
Since that brief aside on terminology is out of the way, let us continue with the kitchen analogy.For the Intel® Xeon Phi™ family of products, and indeed for any processor, one of its cores is like a...
View Articleoffload error: unexpected embedded target binary type, ...
Hello, Could someone help me with my software installation issue with Xeon Phi? I'm trying to compile my program on the host for future offload developments. In the case I don't include any offload...
View ArticleWhy is there segmentation fault when running intel optimized MP Linpack and...
Hi, I need help!!We built a cluster today, with 1 MIC card in every node, and the server is E5-2670 V3 CPU, and we installed nfs, nis, rsh, ssh, mpss service, and we installed intel parallel studio...
View ArticleVectorization of a function call
Hello,I have a following problem: I have a big loop inside my program that I want to parallelize and vectorize. Inside the loop I do a lot of math computations, but there are no dependencies between...
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Parallel Programming Books
Use these parallel programming resources to optimize with your Intel® Xeon® processor and Intel® Xeon Phi™ coprocessor.High Performance Parallelism Pearls: Multicore and Many-core Programming...
View ArticleCompiling Supersonic on Xeon Phi
I'm tring to compile supersonic(an opensource in-memory database of google) on Xeon Phi with an Makefile:CC = iccCFLAGS= -Wall -O2 -g -DNDEBUG -mmicbut after executing "make", yield the following...
View Articlescif0 device missing on host.
Hello,I am setting up a cluster with 8 hosts with 2 MIC's each. I have installed the MPSS 3.4.3 software on Centos 6.6. We have also installed Intel TrueScale InfinibandAl services start fine with no...
View ArticleAre there any instructions in k1om can replace lfence instruction in x86_64
I'm compiling Supersonic, an opensource database of google on Intel Phi using icc with option -mmicbut I find some lfence in the source code, but it seems that Phi doesn't support lfence instruction,...
View Articlenot vectorizing for no reason
Hi all,I have isolated a small section of a loop in my code to vectorize and test for other kinds of optimization a well(like alignment etc)Here is the actual code.WORK1(:,:,kk) =...
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Using MKL to generate random data on Xion Phi
Hi,I try to use MKL to generate lots of random data every time on Xeon phi, but the performance is very bad comparing the performance on Xeon CPU.(E5620) .The attachment is the original code, and the...
View ArticleDell Precision T5810 and Xeon Phi 3120A
Dear all,Could someone please tell me if this machine is compatible with this model of Xeon Phi?We bought a workstation based on this...
View ArticleMICs appear to crash
I'm trying to setup a new system:SuperMicro 5018GR-T2 Intel Xeon Phis: Coprocessor Stepping : B1 Board SKU : B1PRQ-31S1PMPSS 3.5 and Scientific Linux...
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Elusive Algorithms – Parallel Scan
jim@quickthreadprogramming.comThis article on parallel programming will choose one of those elusive algorithms that upon first glance seem to be neither vectorizable nor parallelizable. The intent of...
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