[Coin-discuss] coin Blis supports MPICH or MPICH2

[Jack Bryan]

thanks,

Does parallel BLIS support API routines calling from C or C++ program ? 

Does parallel  Blis support some operations on MILP models ? 

I need some API routines to do some operations on A,b,c parameters of MILP models 
and then call parallel  BLIS solver to solve the MILP model.

But, I need to change the obj. function C to the MILP model at each iteration , and 
then solve the new MILP model with parallel  BLIS .

It means that I can not write a MILP models as an output file with mps format.
I have to solve a new model with parallel  BLIS at each iteration on the fly.

I have used lp_solve (another open source solver) API routines to design a C program 
and it works well.

Now, I want to solve large MILP models so I only want to use parallel  BLIS as a black box.

I want to change my original C program as little as possible so that I can 
focus on algorithm design not on programing with different languages.

I find that lp_solve support API from C (also maybe C++).
Now, I hope that parallel  BLIS also suport API from C or C++.

I plan to design a C program that can call lP_solve API routines to do some 
operations on A,b,c and generate a mew MILP model on the fly and then the C 
program can also call parallel  BLIS API routines such that the new model 
can be solved by parallel  BLIS. 

Any help is apprecited.



Jack.

Feb.  4 2009



From: Yan.Xu at sas.com
To: dtustudy68 at hotmail.com; coin-discuss at list.coin-or.org
Date: Wed, 4 Feb 2009 11:01:33 -0500
Subject: RE: [Coin-discuss] coin Blis supports MPICH or MPICH2



















I checked my notes. Here is more details. I tried mpich-1.2.7
and mpich2-1.0.4 before. They are fine with BLIS except you need add an extra
option

 

   CXXDEFS=”-DMPICH_IGNORE_CXX_SEEK”

 

in configuring command line if using mpich2-1.0.4.

 

Yan

 

 

 





From: Yan Xu 

Sent: Wednesday, February 04, 2009 10:47 AM

To: 'Jack Bryan'; coin-discuss at list.coin-or.org

Subject: RE: [Coin-discuss] coin Blis supports MPICH or MPICH2





 

Jack,

 

ALPS/BLIS uses functions defined by MPI-1 only. It looks to me
that MPICH implements MPI-1 and MPICH2 implements MPI-1 and MPI-2. So, Blis
should runs fine with MPICH and MPICH2.

 

Hope  this helps,

Yan

 





From:
coin-discuss-bounces at list.coin-or.org
[mailto:coin-discuss-bounces at list.coin-or.org] On Behalf Of Jack Bryan

Sent: Wednesday, February 04, 2009 10:04 AM

To: coin-discuss at list.coin-or.org

Subject: [Coin-discuss] coin Blis supports MPICH or MPICH2





 

Hi, 



Blis solver supports MPICH or MPICH2 ?



which version ?



Any help is apprecited.



Jack.

Feb.  4 2009











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