[mvapich-discuss] mvapich2-0.9.8 blacs problems

[Bas van der Vlies]

Bas van der Vlies wrote:
> Bas van der Vlies wrote:
>> Bas van der Vlies wrote:
>>> Hello,
>>>
>>>  SARA is testing the openib stack with mvapich2.
>>>
>>>  We have problems with installing the blacs library 
>>> (www.netlib.org/blacs) it compiles and links correct, some tests namely:
>>>   * The BSBR test with double precision fails with certain topologies.
>>>
>>>  We tried the GNU compilers (gcc, g77) and the INTEL compilers (icc, 
>>> ifort).
>>>
>>> Please help?
>>>
>>> PS)
>>> On our topspin/cisco infiniband stack with their mpi implementation 
>>> there are no problems.
>>>
>>
>> Just an update i tried mvapich-0.9.9-beta with openib and blacs. and 
>> this runs without any problems.
>>
>>
> 
> We also tried the MPICH2 version 1.0.5p3 without any problems.  I will 
> now test the mvapich2 trunk version and i will let you know.
> 
> Regards
> 

Just tested the MVAPICH2 trunk version and this fails also at the double 
precision tests. I am clueless at this point. Are there sites using 
blacs/scalapack with mvapich2?


we going back to MVAPICH1 for blacs and acalapack.

{{{
INTEGER BSBR TESTS: BEGIN.
INTEGER BSBR TESTS: 9600 TESTS; 3600 PASSED, 6000 SKIPPED,    0 FAILED.


REAL BSBR TESTS: BEGIN.
REAL BSBR TESTS: 9600 TESTS; 3600 PASSED, 6000 SKIPPED,    0 FAILED.


DOUBLE PRECISION BSBR TESTS: BEGIN.

PROCESS {   0,   0} REPORTS ERRORS IN TEST#  1370:
    Invalid element at A(   2,   1):
    Expected=-.1559522301235248    ; Received=-.2000000000000000E-01
    Invalid element at A(   3,   1):
    Expected=-.2849901817584808    ; Received=-.2000000000000000E-01
    Invalid element at A(   4,   1):
    Expected=-.1751754689686109    ; Received=-.2000000000000000E-01
    Invalid element at A(   5,   1):
    Expected=-.8236521034076603    ; Received=-.2000000000000000E-01
}}}

-- 
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*                                                                  *
*  Bas van der Vlies                     e-mail: basv at sara.nl      *
*  SARA - Academic Computing Services    phone:  +31 20 592 8012   *
*  Kruislaan 415                         fax:    +31 20 6683167    *
*  1098 SJ Amsterdam                                               *
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