increase tolerance

git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@14374 bac0169d-1eea-4375-b5f6-f89d2ced9994
Remove unused perl from OpenCL arch file.

git-svn-id: svn://svn.code.sf.net/p/cp2k/code/trunk@14375 bac0169d-1eea-4375-b5f6-f89d2ced9994