add "How to run" to README.rdoc

gfd-dennou-club · May 9, 2014 · 0ae9171 · 0ae9171
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commit 0ae9171
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/README.rdoc b/README.rdoc
@@ -5,6 +5,11 @@ Ruby-MPI is a ruby binding of Message Passing Interface (MPI), which is an API s
 == Install
 
  # gem install ruby-mpi
+
+== How to run
+Use mpirun or mpiexec to run a script
+e.g. (run with 4 processes)
+ # mpirun -np 4 ruby hello.rb
 
 == Contributing to Ruby-MPI