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Re: [Manta] Compiling using SSE on IA64


Chronological Thread 
  • From: Dirk Reiners <dirk@lite3d.com>
  • To: manta@sci.utah.edu
  • Subject: Re: [Manta] Compiling using SSE on IA64
  • Date: Wed, 07 Nov 2007 23:45:35 -0600

        Hi Abe,

Abe Stephens wrote:

I was about to take a look at the gcc build on itanium and our local altix stopped responding....

 From your original message:

I'm trying to use g++ (4.1.2). Just turning on MANTA_SSE breaks because -msse and -msse2 are only known on i386, not ia64. Turning on MANTA_SSE_GCC breaks because of 'Couldn't find *epi64x intrinsics', which as far as I can tell is x86_64-specific.

Try manually setting the CXX flags in ccmake (press 't' to view the hidden cache values or edit CMakeCache.txt directly). I'm not sure what the sse options are on gcc, but you should be able to change them after the initial configure.

What's the difference between MANTA_SSE and MANTA_SSE_GCC? Do I have to use the GCC version, or should the normal one work ok?

I'll give it a try when I'm back in the office tomorrow. From what I can tell IA64 gcc doesn't have sse options, so I'll see what it does without them.

Yours

        Dirk





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