On Sun, 25 Mar 2012, Jed Brown wrote:

On Sun, Mar 25, 2012 at 12:16, Satish Balay <[email protected]> wrote:

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I don't see how the above is abusing --with-cusp-dir= option. --with-package-dir option - by definition is to specify the default install root dir of the given package. [assuming all packages default to PACKAGE_DIR/include is wrong].

Okay, but apparently we see it installed this way in practice.

Cusp installer is nothing but unzip. The recommended installation methond is: https://code.google.com/p/cusp-library/wiki/QuickStartGuide

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Simply download the newest version of Cusp from here and extract the contents of each zip file to a directory. We suggest installing Cusp to the CUDA include directory, which is usually

/usr/local/cuda/include/ on a Linux and Mac OSX C:\CUDA\include\ on a Windows system If you are unable to install to the CUDA include directory, then you can place the files somewhere in your home directory, for example: /home/nathan/cuda_libraries/cusp/. Warning: Do not install Cusp to a standard include path like /usr/local/include/. It appears that nvcc treats such paths differently than the suggestions above which causes errors like error: expected primary-expression before οΏ½<οΏ½ token. <<<<<<<<<<< In the above example --with-cusp-dir=/home/nathan/cuda_libraries/cusp/ would have worked. So when one specifies --with-cusp-dir=/opt/local to petsc configure and expects -I/opt/local/include to work - the install process was perhaps: cd /opt/local/include unzip cusp.zip [i.e equivalent to using --prefix=/opt/local/include] Note: one case where users stumble with specifying cusp to cuda is: - unzip at say /home/nathan/soft [but this creates stuff like /home/nathan/soft/cusp/*.h] - Now use --with-cusp-dir=/home/nathan/soft/cusp [but this is wrong - and broken] Satish