How to get ILP64 BLIS
liushang0322 opened this issue · 5 comments
Direct make to get BLIS of LP64, how to get blis of ILP64
Add option -b 64 changes BLIS' F77 API to ILP64. c.f. configure -h output.
Add option
-b 64changes BLIS' F77 API to ILP64. c.f.configure -houtput.
Thank you very much for your reply. I am a Julia user and also a beginner of BLAS. It seems that libblastranpoline can only switch and calculate the BLAS of ILP64. I want to know how an ordinary BLAS can be compiled into ILP64. Does this need to be in the source code? What to modify in , which makes me very troubled, I still can't correctly understand the switching method between LP64 and ILP64, even if it is only the difference in the symbol table from the outer layer
My trouble is that I now have a set of BLAS source code, which is compiled to LP64. He cannot successfully switch to Julia's openblas. I believe that the ILP64 compilation option should be made in blis. Is there a shortcut to switch from LP64 to ILP64? thanks
LP64 and ILP64 are calling conventions instead of symbol differences, although Julia distinguishes them with a 64_ suffix, as is done in libblastrampoline.
You can refer to the build script for blis_jll for more information about Julia integration of BLIS or other BLAS implementations. And if I remember correctly libblastrampoline also does 32-bit forwarding somehow.
Anyways, this seem not the right place to discuss this topic. Symbol requirement by Julia is non-standard hence it's better to refer to Julia's side on patching BLAS backends.