[Pw_forum] AMD64 and IFC

Paolo Giannozzi giannozz at nest.sns.it
Fri Jan 30 19:17:00 CET 2004

On Thursday 29 January 2004 17:13, Jonathan Breeze wrote:

> I am soon to be the lucky recipient of an AMD64 computer [....]
> When I come to compiling PWSCF, I'll need to know :
> 1) Can one compile 64-bit code for AMD using the Intel Fortran
>  Compiler? If not, is there a compiler that can ?

I have heard that you can compile 32-bit executables with Intel
compilers, but it is not very fast, and that the only compiler that
compiles 64-bit code on AMD is PGI. The CVS version has been 
reported to work (a few days ago) with PGI and 64-bit executables:
you need to define -D__LINUX64


Paolo Giannozzi             e-mail:  giannozz at nest.sns.it
Scuola Normale Superiore    Phone:   +39/050-509876, Fax:-563513 
Piazza dei Cavalieri 7      I-56126 Pisa, Italy

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