Professors

Prepare-se para o Inside the Brackets - Uma nova série de discussões sobre HTML5

O crescimento explosivo de dispositivos computacionais e gadgets significa que nenhuma estratégia para o desenvolvimento de Apps está completa sem considerar uma abordagem multiplataforma, para cobrir todo o espectro de dispositivos de forma mais rápida, efetiva e com menor custo.

Prepare-se para o Inside the Brackets - Uma nova série de discussões sobre HTML5

O crescimento explosivo de dispositivos computacionais e gadgets significa que nenhuma estratégia para o desenvolvimento de Apps está completa sem considerar uma abordagem multiplataforma, para cobrir todo o espectro de dispositivos de forma mais rápida, efetiva e com menor custo.

Error: Engine_connect for an offloading code - SCIF problems

Hi there,

A user of ours is building a pre-release version of NAMD that includes Phi offloading support but when we try and run it it claims it cannot find the Phi cards.  I've also replicated the failure with xhpl_offload_intel64.

Reason: FATAL ERROR: MIC error on Pe 0 (barcoo062 device 0): No MIC devices found.

running with OFFLOAD_REPORT=2 reveals the following:

wrong offload tag code

Hi,

in the document listed here (the documentation for the latest intel fortran compiler 13.1.3)

http://software.intel.com/en-us/node/413108#30B8C09D-9EC7-401B-8CFC-E4FC...
the code listed after (practically the last code there)
The following example demonstrates the tag argument:

contains two mistakes:
1. prevents the code to compile due to two stray #endif in the code

Couldn'nt update micflash

I update the mic flash, but it failed.

Any help will be appreciated.

[root@supermicro mpss_gold_update_3]# /opt/intel/mic/bin/micflash -update /opt/intel/mic/flash/EXT_HP2_SMC_Bootloader_1_8_4326.css_ab -device 0 -noreboot
mic0: Flash image: /opt/intel/mic/flash/EXT_HP2_SMC_Bootloader_1_8_4326.css_ab
mic0: SMC update started
micflash: mic0: Flash operation timed out
mic0: Resetting
[root@supermicro mpss_gold_update_3]#

The following is micinfo:

Memory bandwidth measurement

I want to know the rate of memory bandwidth, in GNU/Linux, but i can't find some way.

There are tools that read Memory bandwidth, but i believe they read the factory value no the current rate in time execution.

An other doubt is, when we deactivate the caché memory(setting bit 30 in CR0 register), it get slow performance(other topic), but this sluggish performance is for lack of caché memory o the decrease is caused by decreasing rate of 'memory bandwidth' in the main memory?

Thanks

raw latency

Hi, 

In the SDG of Xeon Phi, it says the access time of L1 and L2 cache in terms of 'raw latency'. It is 1 cycle for the L1 cache and 11 cycles for the L2 cache. I wonder what does the 'raw latency' mean? And what's the difference from the 'real latency' seen by us programmers? 

Jianbin

HTML5-Hub für die Community - We believe in the HTML5 Revolution

Wir schreiben das Jahr 2013. Die Technik ist heute auf einem Stand, den wir zu den Zeiten der Star Trek Filme noch als lebhafte Fantasie wahrgenommen haben. Die technische Evolution hat begonnen. Das Handy wurde zum Smartphone, Notebooks zu Ultrabooks/Tablets und der einfache Röhrenfernseher ist nun ein SmartTV.

So toll dieser Fortschritt auch ist, das Entwicklerleben macht es jedoch nicht unbedingt einfacher.

Subscribe to Professors