You can't link 32-bit libraries into 64-bit code.
That test is not for accuracy but for compatible return conventions.
What compilers are in use here? We've seen several instances of gcc and
icc not being compatible on x86_64 (Linux and Mac OS X: not surprising as
gcc3 and gcc4 are also not compatible in their return conventions), and
presumably MKL is compiled with icc.
Our experience with Intel compilers and MKL is uniformly negative -- less
accuracy and usually slower runs.
On Wed, 5 Nov 2008, Anand Patil wrote:
On Wed, Nov 5, 2008 at 5:59 PM, Martyn Plummer <[EMAIL PROTECTED]> wrote:
It looks like the em64t version of MKL fails the test for the accuracy
of zdotu ("checking whether double complex BLAS can be used") and is
therefore dropped in favour of R's built-in BLAS. I have just tested
this on Fedora and get the same result.
The 32-bit MKL does work for me.
Martyn
Many thanks, Martyn. The 64-bit index space is important to me, will I lose
it if I link against the 32-bit MKL? Also, should I file a bug report with
Intel?
Anand
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