Re: [Starpu-devel] LAPACK symbol conflict with StarPU 1.3

[Mirko Myllykoski <mirkom@cs.umu.se>]

On 2018-10-30 13:31, Samuel Thibault wrote:
> Ah, right, that comes from the mlr support. Either you manage to get
> starpu's configure find your system-provided blas/lapack, or you can
> just pass --disable-mlr to ./configure to disable the feature (which I
> guess you don't use).

Hi,

I was thinking whether it is possible to hide the symbols or rename the 
BLAS and LAPACK functions in min-dgels directory so that they do not 
cause conflicts even when StarPU configuration file fails to detect 
system BLAS/LAPACK.

I renamed all functions in the min-dgels directory and tweaked a few 
additional files:

https://drive.google.com/open?id=1Z3PcgHSn_D_PE0F095p229haXJvUhn2Q

It seems that that worked:

$ readelf -Ws old/libstarpu-1.3.so | grep -v starpu | grep "_$"
    28: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND 
__gmon_start__
   275: 00000000000d4c3b   830 FUNC    GLOBAL DEFAULT   12 dgeqr2_
   309: 00000000000c4282  1193 FUNC    GLOBAL DEFAULT   12 dlamc1_
   341: 00000000000c5be7 11838 FUNC    GLOBAL DEFAULT   12 dlarfb_
   357: 00000000000c9723  3863 FUNC    GLOBAL DEFAULT   12 dlascl_
   360: 00000000000d5f9c  1411 FUNC    GLOBAL DEFAULT   12 dorml2_
   363: 00000000000c472b  2416 FUNC    GLOBAL DEFAULT   12 dlamc2_
   395: 00000000000caa4b  2816 FUNC    GLOBAL DEFAULT   12 dormlq_
   429: 00000000000c509b    44 FUNC    GLOBAL DEFAULT   12 dlamc3_
   468: 00000000000ca8a9   418 FUNC    GLOBAL DEFAULT   12 dlassq_
   481: 00000000000c50c7   719 FUNC    GLOBAL DEFAULT   12 dlamc4_
   487: 00000000000c3e90   111 FUNC    GLOBAL DEFAULT   12 dlabad_
   534: 00000000000c5396   735 FUNC    GLOBAL DEFAULT   12 dlamc5_
   566: 00000000000d1bcc   610 FUNC    GLOBAL DEFAULT   12 iparmq_
   655: 00000000000d4fde   972 FUNC    GLOBAL DEFAULT   12 dlarf_
   755: 00000000000d25f3    54 FUNC    GLOBAL DEFAULT   12 xerbla_
   837: 00000000000d29f5  1979 FUNC    GLOBAL DEFAULT   12 dgelqf_
   839: 00000000000d4fa2    60 FUNC    GLOBAL DEFAULT   12 dlaisnan_
   925: 00000000000cb54b  2792 FUNC    GLOBAL DEFAULT   12 dormqr_
   980: 00000000000ca63a   623 FUNC    GLOBAL DEFAULT   12 dlaset_
   986: 00000000000c21da  5368 FUNC    GLOBAL DEFAULT   12 dgels_
   998: 00000000000d4f79    41 FUNC    GLOBAL DEFAULT   12 disnan_
  1048: 00000000000cfd5f   369 FUNC    GLOBAL DEFAULT   12 iladlr_
...

$ readelf -Ws new/libstarpu-1.3.so | grep -v starpu | grep "_$"
    30: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND 
__gmon_start__
  1248: 000000000011c590    12 FUNC    GLOBAL DEFAULT   12 exit_
  1708: 0000000000119dd0    79 FUNC    GLOBAL DEFAULT   12 flush_
  3054: 0000000000160598     0 OBJECT  LOCAL  DEFAULT   16 __FRAME_END__
  3060: 0000000000362000     0 OBJECT  LOCAL  DEFAULT   22 
_GLOBAL_OFFSET_TABLE_
  3063: 0000000000366aa8     0 OBJECT  LOCAL  DEFAULT   23 __TMC_END__
  3334: 0000000000000000     0 NOTYPE  WEAK   DEFAULT  UND 
__gmon_start__
  3724: 0000000000119dd0    79 FUNC    GLOBAL DEFAULT   12 flush_
  4479: 000000000011c590    12 FUNC    GLOBAL DEFAULT   12 exit_

 - Mirko