--- a
+++ b/src/utils/cpuconf.h
@@ -0,0 +1,34 @@
+/* Copyright (C) 2013 J.F.Dockes
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#ifndef _CPUCONF_H_INCLUDED_
+#define _CPUCONF_H_INCLUDED_
+
+/** Guess how many CPUs there are on this machine, to help with configuring
+ threads */
+struct CpuConf {
+ CpuConf()
+ : ncpus(1)
+ {}
+ // Virtual ones, including hyperthreading, we only care about this for now
+ int ncpus;
+// int ncores;
+// int nsockets;
+};
+
+extern bool getCpuConf(CpuConf& conf);
+
+#endif /* _CPUCONF_H_INCLUDED_ */