From b8ffd99cc5ed9802d592a987f3fed3dea880890a Mon Sep 17 00:00:00 2001
From: wolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Date: Wed, 17 Nov 2004 20:25:34 +0000
Subject: [PATCH] Add a few comments.

git-svn-id: https://svn.dealii.org/trunk@9793 0785d39b-7218-0410-832d-ea1e28bc413d
---
 deal.II/base/source/multithread_info.cc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/deal.II/base/source/multithread_info.cc b/deal.II/base/source/multithread_info.cc
index f01523cc7f..0fb165aa12 100644
--- a/deal.II/base/source/multithread_info.cc
+++ b/deal.II/base/source/multithread_info.cc
@@ -32,10 +32,22 @@
 
 #if DEAL_II_USE_MT == 1
 
+/* Detecting how many processors a given machine has is something that
+   varies greatly between operating systems. For a few operating
+   systems, we have figured out how to do that below, but some others
+   are still missing. If you find a way to do this on your favorite
+   system, please let us know.
+ */
+
+
 #  if defined(__linux__)
 
 unsigned int MultithreadInfo::get_n_cpus()
 {
+				   // on linux, we simply count the
+				   // number of lines listing
+				   // individual processors when
+				   // reading from /proc/cpuinfo
   std::ifstream cpuinfo;
   std::string search;
   unsigned int nCPU = 0;
-- 
2.39.5