Originally posted by: sandeepsinghchauhan

How can i use parallel computing to  run my code ? IS there any settings required to access it? plz help

Hi,

documentation states:

By default, CPLEX applies as much parallelism as possible while still achieving deterministic results. That is, when you run the same model twice on the same platform with the same parameter settings, you will see the same solution and optimization run. This condition is referred to as the deterministic mode.

and

Parallel optimizers are available in CPLEX.

CPLEX supports both multithreaded and distributed parallel optimization.

Parallel barrier, parallel MIP, and concurrent optimizers are implemented to run on hardware platforms with parallel processors. These parallel optimizers can be called from the Interactive Optimizer and the Component Libraries.

When small models, such as those in this document, are being solved, the effect of parallelism will generally be negligible. On larger models, the effect is ordinarily beneficial to solution speed.

regards

Originally posted by: sandeepsinghchauhan

Any example which show the effect  with parallelism and without parallelism . Plz 

Hi,

take any example, such as the one in opl/examples/opl/warehouse/scalablewarehouse.mod

with

int Fixed        = 100;
int NbWarehouses = 50;
int NbStores     = 2000;

and then you may run with and without

execute
{
cplex.threads=1;
}

to check the impact of //

cplex.thread=1 disactivates //

regards

Originally posted by: sandeepsinghchauhan

thanks a lot