iaca-lin32 for x64?

Helo there,

looks like I am missing something simple, but I couldn't find a separate binaries for 64bit linux, where as the one listed on download page(iaca-lin32) gives me a number of errors related to wrong libraries format. Both libstdc++.so.6 and libgcc_s.so.1 of my Centos6.2(x64) yield "wrong ELF class: ELFCLASS64" error.

Should the set up be more specific, or iaca-lin64 was simply ommited in download page?

Thanks,

skk.

Bottleneck is InterIteration

Hi,

iaca reports the throughput buttleneck is interiteration, what does this mean and how to optimize.

Thanks

Is Microsoft's 64-bit 2010 compiler supported?

Hi,

I'm using Microsoft's 64-bit compiler in 2010. In version 1.1.3 of IACA there were a IACA_VC64_START macro. This didn't work on any of my test projects.

Now in the latest version (2.0.1) the documentation still mentions the IACA_VC64_START macro, however this is now missing from the iacaMarks.h file.

Are you indeed supporting 64-bit output from the Microsoft 2010 compiler, or only Intel's own 64-bit compiler?

Thank you.

iaca output explanation

I know , intel machine has 6 ports, each port has several function units.

Graph switch ignored

Thanks for this tool, it's amazingly useful for optimizing SIMD routines. The -graph switch seems to be ignored in my version (2.0/win32), maybe an oversight?

Intel(R) Architecture Code Analyzer 2.0 Now Available

Intel Architecture Code Analyzer 2.0 is now available. This release includes support for the 2nd and 3rd generation Intel Core processor families (code-named Sandy Bridge and Ivy Bridge, respsectively), support for the Mac OS X platform, and improvements to the analyzes. http://software.intel.com/en-us/articles/intel-architecture-code-analyzer/

Latency of instructions

I just started to use IACA and it looks to me that the resulted values differ from the documented ones. For example, when I execute it on a single vmulpd operation, like IACA_START vmulpd r1, r2, r3 IACA_END it reports 4 cycles for both data dependency and performance latency, whereas the latency of vmulpd is 5 (Table C-2 in the Architecture Optimization Manual). Checking the vaddpd seems to result in the correct value of 3 cycles. How should I interpret the reported 4 cycles latency of the vmul instruction?

help needed

Hi! I start to use IACAto analyze my code .But I don't how to fix this:COULD NOT FIND START_MARKER NUMBER 1 The input files is generated with the gcc complier,is it the problem? Must I use the Intel complier? Thank you for your attention!

AVX2 support

Is IACA still being maintained? If so, can one expect AVX2 instruction support any time soon?

Source code of IACA

we'd like to read source code of some softwares we interested in,
Can IACA software be open source ?
How long will it be open source ?

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Intel® Architecture Code Analyzer