Okay I have opened an issue on CMake for handling multiple gencode with multiple code targets.
On Wed, Sep 6, 2017 at 3:19 PM, Mueller-Roemer, Johannes Sebastian < johannes.sebastian.mueller-roe...@igd.fraunhofer.de> wrote: > Yes > > ________________________________ > From: Robert Maynard [robert.mayn...@kitware.com] > Sent: Wednesday, September 06, 2017 6:58 PM > To: Mueller-Roemer, Johannes Sebastian > Cc: cmake@cmake.org > Subject: Re: [CMake] CMake 3.9.x Visual Studio CUDA PDB/compiler flags > issues > > So it works when they are separate gen-code options, but fails when they > are combined. Is that correct? > > > On Wed, Sep 6, 2017 at 11:16 AM, Mueller-Roemer, Johannes Sebastian < > johannes.sebastian.mueller-roe...@igd.fraunhofer.de<mailto: > johannes.sebastian.mueller-roe...@igd.fraunhofer.de>> wrote: > The long form fills the Code Generation field with > compute_20,sm_20;compute_20,compute_20 (the default without gencode > parameters is compute_20,sm_20) and results in the following command line: > > D:\jsroemer\projects\cuda-pdb-test\build\a>"C:\Program Files\NVIDIA GPU > Computing Toolkit\CUDA\v8.0\bin\nvcc.exe" > -gencode=arch=compute_20,code=\"sm_20,compute_20\" > -gencode=arch=compute_20,code=\"compute_20,compute_20\" --use-local-env > --cl-version 2015 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio > 14.0\VC\bin\amd64" -I"C:\Program Files\NVIDIA GPU Computing > Toolkit\CUDA\v8.0\include" -I"C:\Program Files\NVIDIA GPU Computing > Toolkit\CUDA\v8.0\include" -G --keep-dir x64\Debug -maxrregcount=0 > --machine 64 --compile -cudart static -Xcompiler="/EHsc -Zi -Ob0" -g > -D_WINDOWS -Xcompiler "/EHsc /W3 /nologo /Od /FS /Zi /RTC1 /MDd /GR" -o > A.dir\Debug\a.cu.obj "D:\jsroemer\projects\cuda-pdb-test\a\a.cu< > http://a.cu>" > > Which is somewhat redundant > > MSVC turns compute_20,sm_20 into > -gencode=arch=compute_20,code=\"sm_20,compute_20\" > and compute_20,compute_20 into -gencode=arch=compute_20,code= > \"compute_20,compute_20\" > > > Fraunhofer-Institut für Graphische Datenverarbeitung IGD > Fraunhoferstr. 5 | 64283 Darmstadt | Germany > Tel +49 6151 155-606<tel:+49%206151%20155606> | Fax +49 6151 155-139 > <tel:+49%206151%20155139> > johannes.mueller-roe...@igd.fraunhofer.de<mailto:johannes. > mueller-roe...@igd.fraunhofer.de> | www.igd.fraunhofer.de<http:// > www.igd.fraunhofer.de> > > From: Robert Maynard [mailto:robert.mayn...@kitware.com<mailto:robert. > mayn...@kitware.com>] > Sent: Wednesday, September 6, 2017 16:44 > > To: Mueller-Roemer, Johannes Sebastian <Johannes.Sebastian.Mueller- > roe...@igd.fraunhofer.de<mailto:Johannes.Sebastian. > mueller-roe...@igd.fraunhofer.de>> > Cc: cmake@cmake.org<mailto:cmake@cmake.org> > Subject: Re: [CMake] CMake 3.9.x Visual Studio CUDA PDB/compiler flags > issues > > Yes I was responding to comment 3. > > I am curious, does the longer form signature "-gencode > arch=compute_20,code=sm_20 -gencode arch=compute_20,code=compute_20" > work correctly? CMake has to parse the gencode flags and move them to > special msbuild entries, and I wonder if there is a bug when parsing > multiple code options. > > On Wed, Sep 6, 2017 at 10:36 AM, Mueller-Roemer, Johannes Sebastian < > johannes.sebastian.mueller-roe...@igd.fraunhofer.de<mailto: > johannes.sebastian.mueller-roe...@igd.fraunhofer.de>> wrote: > If the comment is wrt 3., the result is the same no matter if I use a > space or an equals sign, if I double escape the quotes (e.g., use the value > as you wrote it in the cmake-gui for CMAKE_CUDA_FLAGS), the value in VS > becomes compute_20,"sm_20,compute_20" instead of > compute_20,sm_20,compute_20, which is equally illegal and will cause the > same error message, also double escaping should not be necessary for a > subset of flags (Xcompiler works fine without it, even if the default > values are pointless). > If the comment is wrt 2., this is the line automatically generated by > CMake/VS when not passing in any gencode flags explicitly. > > Or am I misunderstanding what you mean? > > Fraunhofer-Institut für Graphische Datenverarbeitung IGD > Fraunhoferstr. 5 | 64283 Darmstadt | Germany > Tel +49 6151 155-606<tel:+49%206151%20155606> | Fax +49 6151 155-139 > <tel:+49%206151%20155139> > johannes.mueller-roe...@igd.fraunhofer.de<mailto:johannes. > mueller-roe...@igd.fraunhofer.de> | www.igd.fraunhofer.de<http:// > www.igd.fraunhofer.de> > > From: Robert Maynard [mailto:robert.mayn...@kitware.com<mailto:robert. > mayn...@kitware.com>] > Sent: Wednesday, September 6, 2017 15:38 > To: Mueller-Roemer, Johannes Sebastian <Johannes.Sebastian.Mueller- > roe...@igd.fraunhofer.de<mailto:Johannes.Sebastian. > mueller-roe...@igd.fraunhofer.de>> > Cc: cmake@cmake.org<mailto:cmake@cmake.org> > Subject: Re: [CMake] CMake 3.9.x Visual Studio CUDA PDB/compiler flags > issues > > As far as gencode goes, your line has errors. With CUDA 8 it should look > like: > > -gencode arch=compute_20,code=\"sm_20,compute_20\" > > > > On Mon, Sep 4, 2017 at 4:06 AM, Mueller-Roemer, Johannes Sebastian < > johannes.sebastian.mueller-roe...@igd.fraunhofer.de<mailto: > johannes.sebastian.mueller-roe...@igd.fraunhofer.de>> wrote: > I’m having two issues with debug symbols for CUDA libraries on a project: > > > 1. The PDBs are not placed where the linker later expects to find > them (haven’t been able to replicate this in a minimal project yet) > > 2. Trying to circumnavigate this issue by using “/Z7” instead of > “/Zi” does not work, Zi is always used (replicable in any project with CUDA) > > Replication steps: Replace -Zi or /Zi in CMAKE_*_FLAGS* (CUDA, CXX, C) by > -Z7 or /Z7. Build and see several warnings like “cl : Command line warning > D9025: overriding '/Z7' with '/Zi'” in the output window. > And do the flags in the –Xcompiler make sense at all in VS? The CUDA build > tools seem to determine these automatically anyways… for example I get the > following call in the above scenario: > > "C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v8.0\bin\nvcc.exe" > -gencode=arch=compute_20,code=\"sm_20,compute_20\" --use-local-env > --cl-version 2015 -ccbin "C:\Program Files (x86)\Microsoft Visual Studio > 14.0\VC\bin\amd64" -I"C:\Program Files\NVIDIA GPU Computing > Toolkit\CUDA\v8.0\include" -I"C:\Program Files\NVIDIA GPU Computing > Toolkit\CUDA\v8.0\include" -G --keep-dir x64\Debug -maxrregcount=0 > --machine 64 --compile -cudart static -Xcompiler="/EHsc -Z7 -Ob0" -g > -D_WINDOWS -Xcompiler "/EHsc /W3 /nologo /Od /FS /Zi /RTC1 /MDd /GR" -o > A.dir\Debug\a.cu.obj "D:\jsroemer\projects\cuda-pdb-test\a\a.cu< > http://a.cu>" > > 3. Also, -gencode flags do not behave as expected when given in the > form -gencode=arch=compute_20,code="sm_20,compute_20", as this causes the > VS build system to error out: > > C:\Program Files (x86)\MSBuild\Microsoft.Cpp\ > v4.0\V140\BuildCustomizations\CUDA 8.0.targets(216,9): error : Item > '..\..\a\a.cu<http://a.cu>' Code Generation value is not in the expected > format '[Arch],[Code]'. > > The code generation value in this example is set to > compute_20,sm_20,compute_20 by CMake. > > Fraunhofer-Institut für Graphische Datenverarbeitung IGD > Fraunhoferstr. 5 | 64283 Darmstadt | Germany > Tel +49 6151 155-606<tel:+49%206151%20155606> | Fax +49 6151 155-139 > <tel:+49%206151%20155139> > johannes.mueller-roe...@igd.fraunhofer.de<mailto:johannes. > mueller-roe...@igd.fraunhofer.de> | www.igd.fraunhofer.de<http:// > www.igd.fraunhofer.de> > > > -- > > Powered by www.kitware.com<http://www.kitware.com> > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. 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