jacquemier / optimisation

Simple C code optimisation examples: vectorisation, unroll loop, intrinsic ...

Optimisation

Simple C code optimisation examples: vectorisation, unroll loop, intrinsic ...

How does it work ?

In these examples we compute the sum element by element of two 2D array (matrix) and store the result in a pre allocated matrix. We test different ways to compute these sums and benchmark the number of CPU cycles by element.

Compile same code with different level of optimisation

$prompt> ./buils.sh

Run and compare results

$prompt> ./run.sh