Re: Wrapper dylib to fix OSX libBLAS & libLAPACK with -m64 (Re: 3.5.0+ compiled on Mac OSX 10.6.6)

[Jarno Rajahalme]

On Jan 31, 2011, at 17:27 , ext Richard Campbell wrote:

> 
> On Jan 31, 2011, at 2:42 AM, Jarno Rajahalme wrote:
> 
>> 
>> On Jan 31, 2011, at 9:28 , ext Jarno Rajahalme wrote:
>> 
>>> 
>>> 
>>> I think there is NO chance to use the Apple-provided blas/lapack with 
>>> --enable-64, as --enable-64 requires recompilation of all fortran 
>>> sources/dependencies with the corrensponding integer size setting.
>>> 
>> 
>> Must add that the error above has nothing to do with the need to recompile 
>> fortran code.
>> 
>> However, my point is that if you want to use the (wrapped) blas/lapack 
>> provided by Apple, then this error does not matter. When/if you get it to 
>> compile, it will crash, when calling the incompatible fortran code.
>> 
>>      Jarno
> 
> Is this a problem that has been reported to Apple (and/or Intel, since they 
> wrote this BLAS for their chips?)
> 
> Campbell

I don't think so. I do not think this is a problem per se, just a matter of 
definition. These libs just use 32 bit ("int") indexes. Even in 64-bit code, it 
is up to the definition of a function to specify what kind of ints are used 
(8,16,32,64, or 128 bits) for which argument. The fact that fortran is not 
type-safe (same as C) makes dealing with this a bit more complicated.

  Jarno