[Llvm-bgq-discuss] [maint at libelemental.org] Elemental build issues using bgclang on ALCF Vesta

[Jack Poulson]

Hi Sayan,

I was able to reproduce the error locally with Clang-3.5.-1ubuntu1 (trunk).

I have therefore (at least temporarily) disabled the troublesome
Abstract[Block]DistMatrix::ConstructDiagonal routines since they are not
yet in use anywhere in the library.

Thank you for reporting the issue!

Jack

On 08/01/2014 07:38 PM, Sayan Ghosh wrote:
> Hi,
> 
> I get a lot of errors when I compile with bgclang 3.5 on ALCF Vesta, the
> paths of MPI/PAMI libraries have changed, so I had to make some (very
> minor) modifications on the specific cmake files under toolchain folder
> of Elemental (just removed ../gcc from _ROOT, as I see all {MPI and
> PAMI} libs in ../comm/lib, and had to change some of the library link
> names e.g -lmpich to -lmpich-gcc).  
> 
> This is the error I get with bgclang:
> 
> /home/sghosh/projects/Elemental/src/core/BlockDistMatrix/./setup.hpp:147:32:
> *error: non-type template argument is not a constant*
> *      expression*
> { return new *BlockDistMatrix<T,this->UDiag,this->VDiag>(g,root)*; }
> 
> Clang++11 seems to not treat it as a compile time deterministic
> argument, I played around with some static_casting, but could not make
> it work. I am cc-ing llvm-bgclang-discuss as well, just for reporting. I
> cannot test it on my laptop as I don't have the latest clang build, so
> please excuse me. 
> 
> I was able to build Elemental successfully with gnu-4.7.2 though
> (installed in /bgsys/drivers/ppcfloor/gnu-linux-4.7.2 - which is
> probably unsupported?), using the updated toolchain cmake files. 
> 
> I attach 2 files: updated cmake file for BGQ-Vesta-clang-netlib, and
> build/include/El/config.h.
> 
> -- 
> Regards,
> Sayan

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