Intel Xeon Phi Coprocessors and PC Laptops
Is it possible to use the Xeon Phi coprocessor boards on a PCIe to Thunderbolt 3 chassis? Will it work? I have a PC laptop and would love to add a xeon phi board to the mix. I already have two SLI...
View ArticleStandlone Application crashing and crash dump pointing to intel driver
We are having a standalone application on Windows 7 64Bit, When we close the application it crashes with a not responding message. Below is the stacktrace.0029fb60 76e672f2...
View ArticleNative Compilation Issue
It has a long time I do not use my Xeon Phi 5100. Today I removed all the old intel compilers and installed the latest intel compiler 2017 update2, and the latest MKL. After updating my .bascrc...
View Articlecomplex number class for optimum performance
I'm trying to take the greatest advantage of AVX-512 simd instructions on my Xeon phi motherboard computer. I am not sure how the compiler deals with floating point complex numbers when doing...
View ArticleKNC problem with performance - offload model
Hi everyone,I apologize, if my problem was described elsewhere. I try use offload model for utilization of all available resources of my platform to the joint problem solving (2 x CPU and 2 x KNC...
View ArticleMIC status showing as lost
Hi,I get the following message after running the following command -[root@node8 ~]# micctrl -s mic0: online (mode: linux image: /usr/share/mpss/boot/bzImage-knightscorner) mic1: lostPlease suggest what...
View ArticleVtune Events -- what does "counts at the hardware thread level" mean?
Hello Intel Forum Gurus,I am using Vtune on Knight's Corner. The event documentation (https://software.intel.com/en-us/node/589941) describes many events as being "counted at the hardware thread...
View ArticleHand Tracking Joint Data
HelloI am currently trying to obtain the Joint data from Hand tracking through SR300 and finally tring to retrieve the Hand tracking data from two real sense cameras and then averaging the data to...
View ArticleHardware Counters on KNL
Here's a question for Intel,On KNL, running "perf stat -d" on any executable will tell me how many L1 Cache misses I have, but it will never tell me what percentage of all the cache ops(Hits+misses)...
View ArticleFailed to explicit offload on Xeon Phi KNC
Dear all,I am referring to the guide on Explicit offload QE to Xeon Phi KNC (7120P) here,https://software.intel.com/en-us/articles/explicit-offload-for-quantum-espressoI tried to follow the above steps...
View ArticleCPU Frequency as reported by the Intel linpack
hi all,We're running the latest intel linpack on a server that is being reported as running slowly.The host has 24 cores (HT is off)processor : 23 vendor_id : GenuineIntel cpu family :...
View ArticleBad Hardware? Xeon Phi 7120P on rampage V extreme with blinking blue status...
After installing the Co processor into my system, i have used both windows 10 professional 64 bit and ubuntu 16.04lts 64 bit to find out that the system doesn't show the coprocessor in device manager...
View ArticleHow to understand offload report time?
Hi All,When I set OFFLOAD_REPORT = 1, offload program will output the offload time of MIC.example:[Host-TIME] 26.24[MIC-TIME] 24.13So My question is ：What mean is " Host-Time - MIC-Time "，It is the...
View ArticleEfficiently use vector registers
I am considering to vectorize an application on Xeon Phi. The calculation part of the program looks like this (only a part of the code):t[0] = (c[0]+c[16]+ c[32]) + (c[4]+c[20]+c[36])...
View ArticleHeterogeneous Offload for Marching Cubes and Mesh Export
Greetings,We seek advice and collaborators as the project is GPLv3 and on GITHUB.There exists a parallel Open MP segment within the Marching Cubes class header of...
View Articlempiicc architecture incompatibility on Xeon Phi x200 KNL
Hello,i receive the following errors while trying to compile High Performance Linpack for Intel Xeon Phi x200 (KNL), do you have any suggestion?---------------mpiicc -o HPL_pdtest.o -c...
View Articlempss-3.8 with mellanox ofed 3.3
We recently upgraded to rhel6.8 with the latest kernel patch for security reasons. I am trying to build a new mpss stack for a 380 node cluster with 2 mic's per node. I grabbed the latest mpss...
View ArticleLimiting access on MIC memory size and bandwidth.
Hi all, I am running workloads on a Xeon Phi 7120P, and had some questions regarding how to disable address interleaving on memory controllers. Each memory controller on the Phi has two memory...
View ArticleMPI issue on KNL x200 with Allgather function
Hello,I've run into a problem when using KNL x200 series when using more than 2 server (up to two nodes everything works) and omnipath interface. I've noticed this using HPL, then obtained the same...
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