Informatique parallèle

MIC Core Frequency

I have been trying different methods of timing subroutines in order to measure performance. Since I am calling an MKL method, I decided to try mkl_get_cpu_clocks() which as the name suggests returns elaspsed CPU clock ticks. Of course, I also need to know the core frequency to convert the measurement to seconds so I call the mkl_get_cpu_frequency() function. However, I noticed that although the initial speed reported is the expected 1.05 GHz, the value drops once the computational kernel begins executing.

VM with Windows 7?

Is MPSS compatible with virtual machine installation on the host? I need to have WIndows 7 running on the machine, preferably as the host OS. Failing that, I can live with Windows as a guest OS.

Would SUSE/MPSS function correctly as guest OS under any known virtualization system? If not, can I at least expect SUSE to host a WIn7 VM while running MPSS?

Intel® Trace Collector Filtering

Filtering in the Intel® Trace Collector will apply specified filters to the trace collection process.  This directly reduces the amount of data collected.  The filter rules can be applied either via command line arguments or in a configuration file (specified by the environment variable VT_CONFIG).  Filters are evaluated in the order they are listed.

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  • Informatique parallèle
  • Solution for 5110P overheating?

    Hi all,

    It seems I finally found the problem with my Phi card freezing. It just got overheated. Why?, because the provider mounted a 5110P (which is pasively cooled) into a workstation without forced cooling. Therefore, the 5110P is designed for RACK-ONLY systems with a powerful air system. 

    Then, I would like to know if is there any solution for this around there... I have found something like this:

    ZGEMM on Intel MIC

    In my effort to perform ZGEMM on Intel's MIC, I have come across the following problem and would appreciate any help regarding the same. Say, I need to perform: OUT = M*IN, where OUT,M,IN are complex doubles. I have the following where I have multiplied 4 rows of 'M' with a single column of IN and get the following 4 vectors:

    O1-> |a8|a7|a6|a5|a4|a3|a2|a1|//M1*IN0

    O2-> |b8|b7|b6|b5|b4|b3|b2|b1|//M2*IN0

    O3-> |c8|c7|c6|c5|c4|c3|c2|c1|//M3*IN0

    O4-> |d8|d7|d6|d5|d4|d3|d2|d1|//M4*IN0

    I have to rearrange it into:

    Cryptic error msg: offload error: cannot offload to MIC - device is not available

    Cryptic error msg: offload error: cannot offload to MIC - device is not available "offload error: cannot offload to MIC - device is not available" Could anyone please help me understand what this error message means? Code attempts to offload execution using "pragma offload": Sample code posted by Naik Sumedh in the thread below.

    Cryptic error msg: offload error: cannot offload to MIC - device is not available

    "offload error: cannot offload to MIC - device is not available" Could anyone please help me understand what this error message means? Code attempts to offload execution using "pragma offload": Sample code posted by Naik Sumedh in the thread below. http://software.intel.com/en-us/forums/topic/369458 Compilation succeeds: $ source ${path_to_icc}/compilervars.sh intel64 $ icc test1.cpp -o test1 KNC card is up and running: $ /usr/sbin/micctrl -w mic0: online SSH to MIC works alright. I can run native code on the KNC card.

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