I have something like this:
while(some long loop)
if(something very improbable (0.001%) )
what exactly happens there? Will the if ever converge, or will I have a single thread running alone after entering that if, making everything 2x slower in the workgroup until the end of the kernel?
and another off topic question:
is this correct for replacing an if? : b=(a+b!=0)*b/(a+b);
I want to result to be 0 when both are 0, otherwise b/a+b
(if the sum of a and b is 0, a+b!=0 returns 0, 0*anything is 0, otherwise, the comparison returns 1?)
and what about a simple if:
if(something improbable ) do something small
else do something else
is that costly?
Thank you again for the great help