[Llvm-bgq-discuss] bgclang r205936-20140409 on vesta/mira

[Biddiscombe, John A.]

Hal,

>
> 1. The toolchain is now setup to use libc/libstdc++ files from the
>/bgsys/drivers/toolchain/V1R2M1_base_4.7.2 -- this gives access to a
>more-recent environment for C/C++03 compilation, and furthermore, is
>necessary to make (at least one part of) Boost work with bgclang++11. You
>don't need to be on a system running V1R2M1 (Mira is not yet, for
>example) to make use of this.

We don’t have the toolchain 4.7.2 on our system. Does that mean I can’t
use the new compiler? We have only files from 4.4.6 :(

Thanks

JB

>
> 2. There are more OpenMP 4 features available for you to play with:
>   - '#pragma omp simd' (and friends) should now work (in the sense that
>there is a reasonable probability that it will cause QPX to be generated)
>   - '#pragma omp task depend(...)' is supported (for the most part; I
>think there are still some corner cases where the compiler support is
>ahead of the runtime).
>    Please try these things out and let me know what you find.
>
>For those maintaining their own installs, RPMs (and SRPMs) are available
>on the trac page: https://trac.alcf.anl.gov/projects/llvm-bgq -- If your
>system does not have /bgsys/drivers/toolchain/V1R2M1_base_4.7.2 unpacked,
>and you can't get a copy of those files, please let me know.
>
>Finally, for those strange creatures wanting to run the compiler from the
>A2 login or I/O nodes, I believe this build should now work for you
>again. ;)
>
>Thanks again,
>Hal
>
>-- 
>Hal Finkel
>Assistant Computational Scientist
>Leadership Computing Facility
>Argonne National Laboratory
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