Forums - Adreno 330: clFinish() blocks if openCl writes in 511th variable

Hello everyone,

I'm currently trying to execute some native OpenCl algorithms on an Adreno 330 device. Code is auto generated and use a lot of private variables. Smaller algorithms are fine, but I'm having trouble with bigger ones. I've managed to reduce the code and to get a small (and dumb) example which blocks during execution.

Here is a pseudo-code of what I'm trying to do:

input = 1000;

// OpenCL code

Algo(Input, Output) {

int v1,v2,...,v511,v512,v513,v514;

v511 = 1;

output = input;

}

// End of OpenCl

clFinish();

print output

If in my OpenCl code I'm trying to write in the 511th or the 512th private variable, clFinish() blocks and never returns. If I write in v510 or v513, the execution is fine. If I declare variables as __local, the execution is fine too (but this is not a valid solution for my needs).

Attached is the host.c and algo.cl I use for my tests.

Thank you for your help !