Good morning (here),
Without -O3 and -O2 the OpenCL gave consistently good results without
returning any error.
I think my code is Ok but I open to criticism.
I call the dynamic library from a Python script (Ctypes package).
If you are open to help me I can send all the sources.
Thanks,
Luís Gonçalves
On 09/08/2023 11:06, Jonathan Wakely wrote:
On Wed, 9 Aug 2023 at 10:00, Luís Carlos Carneiro Gonçalves via Gcc
<gcc@gcc.gnu.org> wrote:
https://community.intel.com/t5/GPU-Compute-Software/Intel-GPU-OpenCL-with-g-O3-flag/m-p/1512130/emcs_t/S2h8ZW1haWx8dG9waWNfc3Vic2NyaXB0aW9ufExMMkkxSjhRTU1HMjZZfDE1MTIxMzB8U1VCU0NSSVBUSU9OU3xoSw
This is the wrong mailing list for this topic, please use
gcc-h...@gcc.gnu.org next time.
If you get different results for -O2 and -O3 then it probably means
your program has a bug.
"Before reporting that GCC compiles your code incorrectly, compile it
with gcc -Wall -Wextra and see whether this shows anything wrong with
your code. Similarly, if compiling with -fno-strict-aliasing -fwrapv
-fno-aggressive-loop-optimizations makes a difference, or if compiling
with -fsanitize=undefined produces any run-time errors, then your code
is probably not correct." -- https://gcc.gnu.org/bugs/
