11-Way Intel Ivy Bridge Compiler Comparison

[curaga]

Well obviously not on sparc or arm or so. But it would be interesting to see if the generated binaries would also be faster on AMD hardware.

You've been under a rock perhaps? The binaries by ICC will suck on AMD, VIA and anything else non-Intel x86. See Agner's site for insightful explanations, including benchmarks where he changes his Via to introduce as Intel.

[AnonymousCoward]

SOn some hardware due to PGO you can get ridiculously high speedups; Michael, why are you consistently ignoring this great (and free!) optimization?

How is PGO free if you have to recompile your application after running it with a representative load (and finding that in the first place)?

[China_Guy]

Indeed nice article. Any chance of also testing the intel c/c++ compiler?

Intel C++ Compiler mostly is best optimized Compiler on planet in Intel platform, but it is proprietary and close source. GCC is on second place immediately, Only subordinate to Intel C++.

　

Regarding Clang??? Crappy clang has always been stupid rubbish shit!!!

[kiputnik]

So, when are we finally going to see some PGO benchmarks? On some hardware due to PGO you can get ridiculously high speedups; Michael, why are you consistently ignoring this great (and free!) optimization?

[Wilfred]

Only on Intel, remember.

Well obviously not on sparc or arm or so. But it would be interesting to see if the generated binaries would also be faster on AMD hardware.

[curaga]

Ah, pity, but thanks for the answer. I keep hearing stories that supposedly the intel compiler is 20 to 30% faster than gcc.

Only on Intel, remember.

[Wilfred]

No, I don't have a license and I believe they have some publishing restrictions on it...

Ah, pity, but thanks for the answer. I keep hearing stories that supposedly the intel compiler is 20 to 30% faster than gcc.

[uid313]

Throw in PCC?

Throw in Portable C Compiler (PCC) ?

[Michael]

Indeed nice article. Any chance of also testing the intel c/c++ compiler?

No, I don't have a license and I believe they have some publishing restrictions on it...

[lem79]

Indeed nice article. Any chance of also testing the intel c/c++ compiler?

If this happens, include some AMD CPUs in the testing for reference..