xymatrix
message). If you followed the rule of starting all
entries with a (nonexpandable) character or {
then you can insert the declaration
\CompileMatrices
|
in the preamble of your document: this will create temporary
files containing compiled versions of each
matrix that can be loaded very quickly; they are automatically
recreated when a matrix is changed.
If this causes some diagrams to not work, then such compilation can be
explicitly switched off by using \xymatrixnocompile
instead of
\xymatrix
. Compilation can be switched completely off with
\NoCompileMatrices
(which respects TeX grouping as does
\CompileMatrices
, by the way).