diff options
Diffstat (limited to 'doc/ReferenceManual')
| -rw-r--r-- | doc/ReferenceManual/CCTKReference.tex | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/doc/ReferenceManual/CCTKReference.tex b/doc/ReferenceManual/CCTKReference.tex index ace54032..4a46cc88 100644 --- a/doc/ReferenceManual/CCTKReference.tex +++ b/doc/ReferenceManual/CCTKReference.tex @@ -7185,6 +7185,11 @@ The variable name should be in the form \code{<implementation>::<variable>} \begin{discussion} For a single processor run this call will return zero. For multiprocessor runs, this call will return 0 $\leq$ myproc $<$ \code{CCTK\_nProcs(cctkGH)}. + +Calling \code{CCTK\_MyProc(NULL)} is safe (it will not crash). +Current drivers handle this case correctly (i.e.\ \code{CCTK\_MyProc(NULL)} +returns a correct result), but only a ``best effort'' is guaranteed for +future drivers (or future revisions of current drivers). \end{discussion} \begin{examples} \begin{tabular}{@{}p{3cm}cp{11cm}} @@ -7213,6 +7218,11 @@ runs, this call will return 0 $\leq$ myproc $<$ \code{CCTK\_nProcs(cctkGH)}. \end{params} \begin{discussion} For a single processor run this call will return one. + +Calling \code{CCTK\_nProcs(NULL)} is safe (it will not crash). +Current drivers handle this case correctly (i.e.\ \code{CCTK\_nProcs(NULL)} +returns a correct result), but only a ``best effort'' is guaranteed for +future drivers (or future revisions of current drivers). \end{discussion} \begin{examples} \begin{tabular}{@{}p{3cm}cp{11cm}} |