[Trilinos-Users] Amesos2: SuperLU_Dist

[Juha, Mario Jesus]

Reporting a possible bug in Amesos2_Superludist_def.hpp:

When using SuperLU_dist 5.0.0 with Amesos2, the function getValidParamers_impl() is throwing an exception in line:

pl->set("npcol", data_.grid.npcol, "Number of columns in the processor grid. "
              "Must be set with nprow", col_row_validator);

The problem is that “data_.grid.npcol” is equal to zero always! This value must be set up in this line of the superlu_dist constructor solver:

SLUD::superlu_gridinit(data_.mat_comm, nprow, npcol, &(data_.grid));

Previous function is part of the SuperLU_dist library. Using a debugger shows that npcol and nprow are set up correctly inside the previous function, but when leaving the function, then, “data_.grid.npcol” is assigned the value of zero.

Any idea of how to fix it?

Cordially,

Mario J. Juha
________________________________
From: Alicia Klinvex [aklinvex at gmail.com]
Sent: Friday, May 27, 2016 3:37 PM
To: Juha, Mario Jesus
Cc: trilinos-users at trilinos.org
Subject: Re: [Trilinos-Users] Amesos2: SuperLU_Dist

Hello Mario,

The Trilinos CMake guide explains how to link Trilinos against pre-installed TPLs: http://trilinos.sandia.gov/Trilinos10CMakeQuickstart.txt<redir.aspx?REF=p6mSawIypIJSIodGKvEsh82AHQI1wja4NIKIS8lv_jjSzSUp64nTCAFodHRwOi8vdHJpbGlub3Muc2FuZGlhLmdvdi9UcmlsaW5vczEwQ01ha2VRdWlja3N0YXJ0LnR4dA..>  Search for "Enabling support for optional Third-Party Libraries".

There's also a handy script for installing various DOE codes (including Trilinos and SuperLU_Dist) and enabling the interfaces between them, available here: https://xsdk.info/download/<redir.aspx?REF=2MeH-2qZNlFOyEWPxzGvg2KdlCEiplKWEEyx0hFxh93SzSUp64nTCAFodHRwczovL3hzZGsuaW5mby9kb3dubG9hZC8.>

Best wishes,
Alicia

On Fri, May 27, 2016 at 12:46 PM, Juha, Mario Jesus <juham at rpi.edu<redir.aspx?REF=mVEnHMV5_mWgU5u9gzX_p7G0IvT1Hmw4DIKnp6CuBxvSzSUp64nTCAFtYWlsdG86anVoYW1AcnBpLmVkdQ..>> wrote:
Dear developers / Users,

I am trying to use SuperLU_Dist in Amesos2, but the information is confusing. Some headers specify the the supported version of SuperLU_Dist is 2.5, other part of the code says it is supported up to version 4.0. Could you clarify this issue?

Also, how do I link my local version of SuperLU_Dist with Amesos2? I can not find an example.

Cordially,

Mario J. Juha

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