topic I'm trying to find the answer in Software Archive

Core Temperature at Xeon Phi

Aya — Tue, 03 Sep 2013 12:05:39 GMT

Hello everybody,

I want to purchase Xeon Phi Coprocessor for researching purposes,

and I want to know if I can get each core temperature using its tools and software ??

Thanks in advance,

Heba

Yes, for example by the

TimP — Tue, 03 Sep 2013 12:12:04 GMT

Yes, for example by the micsmc or micsmc-gui tool.

So, just to be sure, I can

Aya — Tue, 03 Sep 2013 12:21:10 GMT

So, just to be sure, I can get at a speccific time 80 temperature values for the 80 running cores ?

No temperature measurements

TimP — Tue, 03 Sep 2013 12:51:19 GMT

No temperature measurements by individual cores. The tool does show CPU utilization by core.

Thanks.

Aya — Wed, 04 Sep 2013 13:15:33 GMT

Thanks.

So micsmc tool just give one temperature value of the whole cores (maybe the maximum or average).

I have seen some researcher

Aya — Fri, 06 Sep 2013 13:24:33 GMT

I have seen some researcher used Intel's Quad-core system with a Machine Specific Register (MSR) to access Digital Thermal Sensor.

In MSR, they use IA32_THERM_STATUS register in order to get temperature of each core.

Is there something similar in Xeon Phi, till we get the temperature for each core ???

Thanks in advance

I'm trying to find the answer

TaylorIoTKidd — Fri, 06 Sep 2013 16:05:07 GMT

I'm trying to find the answer for you. The first person I contacted said that he knows of none, but this isn't a definite answer.

Ok. Thanks. I will wait,

Aya — Fri, 06 Sep 2013 19:26:33 GMT

Ok. Thanks. I will wait, because my decision of buying it depends on this point.

I found already in the file: xeon-phi-software-developers-guide
Table 2-12 Intel MIC Architecture commands
micsmc: displays the card thermal, electrical and usage parameters. For example:core temperature, core usage,.....

So, does it mean the temperature of each core or one value for the all cores ????

Thanks in advance

In micsmc it says "average

TaylorIoTKidd — Fri, 06 Sep 2013 21:56:36 GMT

In micsmc it says "average core temperature," so I assume it's an average across all the cores.

As far as I can tell, it isn't in the list of PMU (Performance Monitoring Unit) events given by http://software.intel.com/sites/default/files/forum/278102/intelr-xeon-phitm-pmu-rev1.01.pdf.

I'm still trying to find out if we can get individual core temperatures. Something calculates the average from some data.

Regards
--
Taylor

Unlike other IA cores, there

Clayton_C_Intel — Tue, 10 Sep 2013 21:55:00 GMT

Unlike other IA cores, there is not a temperature sensor for every core on the first generation Xeon Phi. Instead, there are a series of sensors scattered around the die. They can be accessed by reading the CURRENT_DIE_TEMPn registers in SBOX. The Intel(R) Xeon Phi(TM) Coprocessor Systems Software Developers Guide has the location of these registers in MMIO.

thank you for this

Aya — Tue, 10 Sep 2013 23:15:47 GMT

thank you for this information ..