Arm Posts Initial Ares CPU Tuning Support For GCC, Helps SPEC Performance By ~1%

[phoronix]

Phoronix: Arm Posts Initial Areas CPU Tuning Support For GCC, Helps SPEC Performance By ~1%

Arm continues plumbing the open-source GNU compiler toolchain support for their next-generation "Ares" high-performance server/HPC core...

http://www.phoronix.com/scan.php?pag...C-Tuning-Patch

[sireangelus]

there is a question that has always bothered me: chances are that if you run march=native on a big.SMALL architecture, you get a read on the cortex a53. How does the compiler decides how to optimize the code then? will it create a code that might stall on the small cores or code that will skip on the faster features of the big cores?

[commodore256]

1% may not sound like a lot, but if you have a $10M Supercomputer, that's $100,000 of computing power.