[Help-glpk] [Fwd: Help required : glp_alloc: no memory avaialable]

[Andrew Makhorin]

-------- Forwarded Message --------
From: Prem Chedella <address@hidden>
To: address@hidden <address@hidden>
Subject: Help required : glp_alloc: no memory avaialable
Date: Wed, 18 Jun 2014 10:55:44 +0000

Hi All,

 

I’m using GPLK library 4.54 in Window environment for one of the
project.  

 

For smaller set the of data, it works.  For data, which is moderate, it
does not work and gives an error, which is given below:

 

glp_alloc: no memory avaialable

Error detected in file ..\src\env\alloc.c at line 91

 

I did some investigations on this:

glp_intopttakes huge amount of CPU time and never come back also, after
15 minutes of program execution, it stops execution of the program and
gives the above error:

 

Following is the snippet of the code:

 

masterLP = glp_create_prob(); //Create and assign pointer lp to new
(empty) linear program

masterTran = glp_mpl_alloc_wksp();

ret=glp_mpl_read_model(masterTran, masterModelFileName,1); //Read and
store the problem from .mod file into the lp problem obj

ret=glp_mpl_read_data(masterTran,masterDataFileName);

ret = glp_mpl_generate(masterTran, NULL);

glp_mpl_build_prob(masterTran, masterLP);

glp_write_lp(masterLP,NULL, "master.lp");

glp_read_lp(masterLP,NULL,"master.lp");

ret = glp_simplex(masterLP, NULL); //Tell GLPK to optimize problem that
"lp" points to

glp_intopt(masterLP,NULL);

masterOptObjVal = glp_mip_obj_val(masterLP); //Get the optimal objective
value from the optimization

 

 

Appreciate your help/suggestion in this issue.

 

Thank you in advance.

 

Kind Regards,

Prem Chedella




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