Convey vector example
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The following is a short example on loop unrolling; for more information, see section 5 of the Convey Programmers Guide (.pdf).
Note that Team Slytherin (author) are having difficulty running this example.
Convey allows you to write c/c++ or fortran code that is compiled to run on the co-processor. This is done by changing loops into vector opererations. Below is an example of a function that can be compiled to run with the co-processor
void SimpleVectorAdder(int x[], int y[], int n){ int i; #pragma cny begin_coproc for(i = 0; i < n; i++){ x[i] = x[i] + y[i]; } #pragma cny end_coproc }
or
void SimpleVectorAdder(int x[], int y[], int n){ #pragma cny dual_target int i; for(i = 0; i < n; i++){ x[i] = x[i] + y[i]; } }