Offload transfer question
Hi, i have a question about transfer data from host do coprocessor. Look at samplce code below. Are data transferred asynchronously to coprocessor? I would like to overlap transfer and computation...
View ArticleMissing micctrl, micflash in RHEL6.7 MPSS 3.6.1 installation
I am upgrading a RHEL6.7 system to MPSS 3.6.1, following the steps in the 3.6.1 users guide and the readme.txt file.The upgrade proceeded normally up to the Readme section 2.2, step 5, and the command:...
View ArticleStrange Errors by reseting mic configuration
Hi all, I have installed mpss 3.3.3 on my Centos 7.2 machine. After rebuilding the kernel-modules, I could install it without problems.I had another mpss configuration on the machine which caused...
View ArticleMulit-process service tool for xeon-phi
I was wondering do we have any resource management tool for xeon-phi like CUDA MPS (it allows CUDA kernels to be processed concurrently on the same GPU; this can benefit performance when...
View ArticleIntel Phi PARDISO
Hi, I am going to run a CFD simulation that the memory usage will be over 100 GB. I use mkl PARDISO in order to solve the linear system that arises. Very recently I informed about Intel Phi...
View Articleoffload error: dlopen() failed
Hello,When I try to run my offload code application, I got this error:On the remote process, dlopen() failed. The error message sent back from the sink is /tmp/coi_procs/1/3640/load_lib/icpcoutmdD0mj:...
View Articleoffload error: cannot offload to MIC - device is not available
I am a newer in MIC.I install and config Phi follow this link "arrayfire.com/getting-started-with-the-intel-xeon-phi-on-ubuntu-14-04linux-kernel-3-13-0/".It seems that everything is OK.But when I run...
View ArticleRemote procedure call, license of code call to scif library
Hi, We have developed a low latency, remote procedure call (rpc) Framework for Xeon <--> Xeon Phi based on SCIF, which is very successful for our applications. We think it could be helpful for...
View ArticleGet the Power Consumption Info When Running a Program
Hi,When I run a program using offload mode, I want to collect the information of power consumption of the MIC. Is there any way to do that?I found that I can use the micsmc to get the Total Power info...
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Build Problem - OFFLOAD MIC
Hi,i am trying to compile a version of my code in which i use OFFLOAD on MIC. I am able to obtain all *.o files but when i try to link them i receive a lot of errors like this:x86_64-k1om-linux-ld:...
View ArticleMulti Mic affinity
I would like to run a heterogeneous program on a multi node cluster where each node comes with 2 MIC devices. Let's consider for example 2 dual-sockets nodes:-------------------...
View ArticleRebuild ofed-driver-3.6.1-1.src.rpm MPSS installation issues
Hello,Im installing MPSS 3.6.1 on two xeon phi nodes in a cluster connected to Infiniband, CentOS 6.6 and the kernel version is 2.6.32-504.8.1.el6.x86_64, so I update the kernel-headers and...
View ArticleMODULEFILE creation the easy way
If you use Environment Modules (from Sourceforge, SGI, Cray, etc) to setup and control your shell environment variables, we've created a new article on how to quickly and correctly create a...
View ArticlePoor speed in MIC
Dear All:As learning purpose, i tried to code a program which find total number prime number for a given range. isprime function finds if a number is prime or not. I added !$omp declare simd to...
View ArticleCentOS 7.2 + MLNX_OFED 3.1-1 + MPSS 3.6.1
I'm trying to get mpss running on our centOS 7.2 cluster.We're using kernel 3.10.0-327.4.4.el7.x86_64.MLNX_OFED_LINUX-3.1-1.0.3.1 (OFED-3.1-1.0.3).On Mellanox Technologies MT27500 Family [ConnectX-3]...
View ArticleOpenMP (icpc 15.0.6) weird behavior on MIC
Dear forum, The toy code below returns "sum = 256" on my 5110P. Any thoughts on why oversubscription did not work? Thanks!PS:Driver Version : 3.5.1-1 MPSS Version : 3.5.1 icpc version 15.0.6#include...
View Article!$omp target device(0) map(to : min_limit,max_limit) not working
In Poor speed in MIC you will find a test case that exhibits a failure of the map(... clause of !$omp target device(0) not copying data to/from the device. The workaround was to use !$omp target update...
View ArticleMissed optimization opportunity ANY(array .eq. 0.0)
It is a common occurrence to test a result array for conditions.vector_mod = mod(vector_num, vector_i) !dir$ if(.true.) if(ANY(vector_mod .eq. 0) return !dir$ else do j=1,vector_length...
View ArticleError: (pointer to array) may not be used in a subscript operation. How could...
Hello everybody.I have a pointer like this:float **p = ...; ... #pragma offload target(mic) in(p[0]:length(...)) _FUNCITON_Then I got error info: ` "p" may not be used in a subscript operation.` when...
View ArticleLogin as root on mic0
Hello,I want to copy some .so files to /lib64 on mic0 via scp. However, I get an permission denied. When I try to login as root using ssh, after typing in my sudo password nothing happens.I already...
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