GCC and Intel Xeon Phi (Intel MIC) support

GCC and Intel Xeon Phi (Intel MIC) support

[Bharath Ramesh]

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I am working on a research project for which I require using GCC 
compiler and I am also using Intel Xeon Phi (aka Intel MIC) co-processor 
cards. Looking at the Intel's website it states changes have been 
committed to GCC [1]. I was wondering which version of GCC supports it 
and what flag should I add for it to generate code that can run on the 
Intel Xeon Phi cards. If I have to compile GCC to support it what flags 
do I pass to it while building GCC. Really appreciate any help on this.

[1] 
http://software.intel.com/en-us/articles/intel-and-third-party-tools-and-libraries-available-with-support-for-intelr-xeon-phitm

-- 
Bharath



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Re: GCC and Intel Xeon Phi (Intel MIC) support

[Tim Prince]

On 3/21/2013 4:23 PM, Bharath Ramesh wrote:
> I am working on a research project for which I require using GCC 
> compiler and I am also using Intel Xeon Phi (aka Intel MIC) 
> co-processor cards. Looking at the Intel's website it states changes 
> have been committed to GCC [1]. I was wondering which version of GCC 
> supports it and what flag should I add for it to generate code that 
> can run on the Intel Xeon Phi cards. If I have to compile GCC to 
> support it what flags do I pass to it while building GCC. Really 
> appreciate any help on this.
>
> [1] 
> http://software.intel.com/en-us/articles/intel-and-third-party-tools-and-libraries-available-with-support-for-intelr-xeon-phitm
>
This gcc doesn't support the parallel floating point instructions (as 
your reference says), and several linux components normally built with 
it are de-featured.  The cross-compiled gcc is supplied with the 
coprocessor linux installation.

-- 
Tim Prince

Re: GCC and Intel Xeon Phi (Intel MIC) support

[Bharath Ramesh]

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>On Thu, Mar 21, 2013 at 04:23:57PM -0400, Bharath Ramesh wrote:
>> I am working on a research project for which I require using GCC
>> compiler and I am also using Intel Xeon Phi (aka Intel MIC)
>> co-processor cards. Looking at the Intel's website it states changes
>> have been committed to GCC [1]. I was wondering which version of GCC
>> supports it and what flag should I add for it to generate code that
>> can run on the Intel Xeon Phi cards. If I have to compile GCC to
>> support it what flags do I pass to it while building GCC. Really
>> appreciate any help on this.
>> 
>> [1] http://software.intel.com/en-us/articles/intel-and-third-party-tools-and-libraries-available-with-support-for-intelr-xeon-phitm
>
>This gcc doesn't support the parallel floating point instructions
>(as your reference says), and several linux components normally
>built with it are de-featured. The cross-compiled gcc is supplied
>with the coprocessor linux installation.

Thanks for the information. I did find the cross compiler. I will
try to see if I can build the native Xeon Phi compiler if I can
get hold of their patches. I am not interested the floating point
instructions as much, I just want to use gcc to create a proof of
concept work. Hopefully as GCC support matures it can be used as
the mainstream compiler as opposed to the Intel Compilers.

P.S: I am not subscribed to the list so would appreciate if I am
copied in the replies.


-- 
Bharath

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