[gmx-users] OpenCL compile error

[Szilárd Páll]

Hi,

I have seen the same error when I tried to compile with -cl-std=CL2.0. I
was using the master branch, but I'd be surprissed if the error did not
occur in 5.1.2. With -cl-std=CL1.2 it should compile. My guess is that this
is a compiler bug as the headers it complains about are where they should
be (at the path passed after -I) and the error was "fixed" by copying the
headers to my temp dir where the intermediate files were.

Cheers,
--
Szilárd

--
Szilárd

On Mon, Feb 22, 2016 at 6:58 PM, Mark Abraham <mark.j.abraham at gmail.com>
wrote:

> Hi,
>
> I'm aware of some unknown problem in master branch, but the release branch
> is fine. Please use that.
>
> Mark
>
> On Mon, 22 Feb 2016 18:31 Geert Konijnendijk <geert at konijnendijk.info>
> wrote:
>
> > Dear GMX users,
> >
> > When I try to run a simulation, I get the following error:
> >
> > Selecting kernel for AMD
> > The OpenCL compilation log has been saved in
> "nbnxn_ocl_kernels.cl.FAILED"
> >
> > -------------------------------------------------------
> > Program:     gmx mdrun, version 2016-dev-20160222-29943fe
> > Source file: src\gromacs\mdlib\nbnxn_ocl\nbnxn_ocl_jit_support.cpp (line
> > 230)
> >
> > Fatal error:
> > Failed to compile NBNXN kernels for GPU #Hawaii:  /M3l
> >
> > For more information and tips for troubleshooting, please check the
> GROMACS
> > website at http://www.gromacs.org/Documentation/Errors
> > -------------------------------------------------------
> >
> > The log file contains the following:
> >
> > Compilation of source file failed!
> > -- Used build options: -DWARP_SIZE_TEST=64 -D_AMD_SOURCE_
> > -DGMX_OCL_FASTGEN_ADD_TWINCUT -DEL_EWALD_ANA -DEELNAME=_ElecEw
> > -DVDWNAME=_VdwLJ -DCENTRAL=22 -DNBNXN_GPU_NCLUSTER_PER_SUPERCLUSTER=8
> > -DNBNXN_GPU_CLUSTER_SIZE=8 -DNBNXN_GPU_JGROUP_SIZE=4
> > -DNBNXN_AVOID_SING_R2_INC=1.0e-12f
> > -I"C:\path_to_gromacs\src\gromacs\mdlib\nbnxn_ocl"
> > --------------LOG START---------------
> > C:\Users\Geert\AppData\Local\Temp\\OCL5788T8.cl:59:10: fatal error:
> > 'nbnxn_ocl_kernels_fastgen_add_twincut.clh' file not found
> > #include FLAVOR_LEVEL_GENERATOR
> >          ^
> > C:\Users\Geert\AppData\Local\Temp\\OCL5788T8.cl:45:36: note: expanded
> from
> > macro 'FLAVOR_LEVEL_GENERATOR'
> >     #define FLAVOR_LEVEL_GENERATOR
> > "nbnxn_ocl_kernels_fastgen_add_twincut.clh"
> >                                    ^
> >
> > error: Clang front-end compilation failed!
> > Frontend phase failed compilation.
> > Error: Compiling CL to IR
> > ---------------LOG END----------------
> >
> > When I try to compile the kernel in AMD CodeXL with the same build
> options
> > as listed in the log above, it fails with the same error for most GPU
> > architectures, but it succeeds for some.
> >
> > I am running on Windows 10, with the OpenCL library from the AMD App SDK
> > 3.0.
> >
> > Is this a known problem and is there a simple solution, or could this be
> a
> > bug in the AMD OpenCL compiler or the gromacs OpenCL code?
> >
> > Thanks in advance!
> >
> > Geert
> >
> > --
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