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clang-omp / clang

clang with OpenMP 3.1 and some elements of OpenMP 4.0 support
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Help linking omp to clang-omp #64

Closed gabrielefronze closed 9 years ago

gabrielefronze commented 9 years ago

Hello folks, I'm just new to mac osx and I needed the clang openmp support. After a quick search I found your wonderful project. I managed to compile the compiler, and -fopenmp is ATM a recognized flag for clang. Anyway I also downloaded the newest version of Intel OMP runtime (https://www.openmprtl.org/download#stable-releases) and made (or make-d) it in both fat and thin versions, but I can't manage exactly how to modify my .bash_profile (.bashrc, never mind). These are the lines I hadded to my profile:

export PATH=$PATH:$HOME/clangomp/build/Debug+Asserts/bin export C_INCLUDE_PATH=$HOME/clangomp/build/include::$C_INCLUDE_PATH export CPLUS_INCLUDE_PATH=$HOME/clangomp/build/include::$CPLUS_INCLUDE_PATH export LIBRARY_PATH=$HOME/clangomp/build/Debug+Asserts/lib::$LIBRARY_PATH export DYLD_LIBRARY_PATH=$HOME/clangomp/build/Debug+Asserts/lib::$LD_LIBRARY_PATH

clang-omp seems correctly set, but I don't know how to set and links. Suppose my omp build has been done to "/usr/local/libomp_oss/build".

thanks a lot for any suggestion

gf

jcownie-intel commented 9 years ago

You should be using the LLVM OpenMP runtime (from http://openmp.llvm.org), not the Open Source Intel runtime from openmprtl.org. (They are closely related, but for use with LLVM the one that is in LLVM is a better place to start).

-- Jim

James Cownie james.h.cownie@intel.com SSG/DPD/TCAR (Technical Computing, Analyzers and Runtimes) Tel: +44 117 9071438

From: gabrielefronze [mailto:notifications@github.com] Sent: Friday, March 6, 2015 11:09 AM To: clang-omp/clang Subject: [clang] Help linking omp to clang-omp (#64)

Hello folks, I'm just new to mac osx and I needed the clang openmp support. After a quick search I found your wonderful project. I managed to compile the compiler, and -fopenmp is ATM a recognized flag for clang. Anyway I also downloaded the newest version of Intel OMP runtime (https://www.openmprtl.org/download#stable-releases) and made (or make-d) it in both fat and thin versions, but I can't manage exactly how to modify my .bash_profile (.bashrc, never mind). These are the lines I hadded to my profile:

export PATH=$PATH:$HOME/clangomp/build/Debug+Asserts/bin export C_INCLUDE_PATH=$HOME/clangomp/build/include::$C_INCLUDE_PATH export CPLUS_INCLUDE_PATH=$HOME/clangomp/build/include::$CPLUS_INCLUDE_PATH export LIBRARY_PATH=$HOME/clangomp/build/Debug+Asserts/lib::$LIBRARY_PATH export DYLD_LIBRARY_PATH=$HOME/clangomp/build/Debug+Asserts/lib::$LD_LIBRARY_PATH

clang-omp seems correctly set, but I don't know how to set and links. Suppose my omp build has been done to "/usr/local/libomp_oss/build".

thanks a lot for any suggestion

gf

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Reply to this email directly or view it on GitHubhttps://github.com/clang-omp/clang/issues/64.

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jcownie-intel commented 9 years ago

Build instructions are at http://openmp.llvm.org/README.txt

-- Jim

James Cownie james.h.cownie@intel.com SSG/DPD/TCAR (Technical Computing, Analyzers and Runtimes) Tel: +44 117 9071438

From: gabrielefronze [mailto:notifications@github.com] Sent: Friday, March 6, 2015 11:27 AM To: clang-omp/clang Cc: Cownie, James H Subject: Re: [clang] Help linking omp to clang-omp (#64)

Thanks a lot for your suggestion. I've followed the instructions on the webpage you linked. At compilation time I get the following error:

clang: error: unknown argument: '-static-intel' clang: error: unknown argument: '-no-intel-extensions'

and make-ing fails. Am I supposed to use clang to compile (make compiler=clang), right?

—

Reply to this email directly or view it on GitHubhttps://github.com/clang-omp/clang/issues/64#issuecomment-77545135.

Intel Corporation (UK) Limited Registered No. 1134945 (England) Registered Office: Pipers Way, Swindon SN3 1RJ VAT No: 860 2173 47

This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.

gabrielefronze commented 9 years ago

Thanks a lot for your suggestion, infact I've managed out how to solve that before your kind second answer. Now I've managed to compile the package with cmake specifying clang and clang++, as well both 32 and 32e libraries. Now the right runtime library can be found in /usr/local/openmp. What's next?

gabrielefronze commented 9 years ago

Thanks to jcownie-intel suggestions I've managed to solve the issue. Thanks all for the help!