Re:Can Fortran survive another 15 years?
by marshallward on Saturday May 06, 2023 @01:10PM
(#35843304)
I have not yet seen anything like this, but I have observed the Intel compiler produce different bytecode on Intel and AMD machines.
In one case, the compiler would use masking vector instructions on Intel but not on AMD. It was also the correct decision: Those instructions have very low latency on Intel, but are many times slower on AMD. On each platform, it produced the best bytecode that it could.
In one case, the compiler would use masking vector instructions on Intel but not on AMD. It was also the correct decision: Those instructions have very low latency on Intel, but are many times slower on AMD. On each platform, it produced the best bytecode that it could.