Update source.tex

docs/user-guide/installation/source.tex

@@ -571,7 +571,7 @@ can be selected using the following options:
 
     Build \nekpp with support for HDF5. This enables input/output in the HDF5
     parallel file format, which can be very efficient for large numbers of
-    processors. HDF5 output can be enabled by using a command-line option or
+    processes. HDF5 output can be enabled by using a command-line option or
     in the \inlsh{SOLVERINFO} section of the XML file. This option requires 
     that \nekpp be built with MPI support with \inlsh{NEKTAR\_USE\_MPI} enabled.