Initialise the number of threads to the number of cores in the machine (#170).

2 files changed, 11 insertions, 1 deletions

diff --git a/ChangeLog b/ChangeLog
index 733625063..1d8f3fb42 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2013-07-04  Carl Hetherington  <cth@carlh.net>
+
+	* Try to initialise the number of threads to the number
+	of cores in the machine (#170).
+
+	* Pass _FILE_OFFSET_BITS=64 so that fopen() doesn't refuse
+	to open files of >2GB; fixes failure to re-start jobs
+	where the MXF has grown larger than 2GB on 32-bit machines.
+
 2013-07-01  Carl Hetherington  <cth@carlh.net>
 
 	* Version 0.106 released.
diff --git a/src/lib/config.cc b/src/lib/config.cc
index 7d8e82335..d2d7fa2fd 100644
--- a/src/lib/config.cc
+++ b/src/lib/config.cc
@@ -36,13 +36,14 @@ using std::vector;
 using std::ifstream;
 using std::string;
 using std::ofstream;
+using std::max;
 using boost::shared_ptr;
 
 Config* Config::_instance = 0;
 
 /** Construct default configuration */
 Config::Config ()
-	: _num_local_encoding_threads (2)
+	: _num_local_encoding_threads (max (2U, boost::thread::hardware_concurrency()))
 	, _server_port (6192)
 	, _reference_scaler (Scaler::from_id (N_("bicubic")))
 	, _tms_path (N_("."))