diff --git a/.bzrignore b/.bzrignore
index a73784625..df0e03ed6 100644
--- a/.bzrignore
+++ b/.bzrignore
@@ -6,3 +6,4 @@
 ./include
 ./templates
 **/O.*
+./QtC-*
diff --git a/src/libCom/osi/epicsThread.h b/src/libCom/osi/epicsThread.h
index d7be5d197..fa28215d3 100644
--- a/src/libCom/osi/epicsThread.h
+++ b/src/libCom/osi/epicsThread.h
@@ -3,7 +3,7 @@
 *     National Laboratory.
 * Copyright (c) 2002 The Regents of the University of California, as
 *     Operator of Los Alamos National Laboratory.
-* Copyright (c) 2012 ITER Organization
+* Copyright (c) 2013 ITER Organization.
 * EPICS BASE is distributed subject to a Software License Agreement found
 * in file LICENSE that is included with this distribution. 
 \*************************************************************************/
@@ -85,6 +85,7 @@ epicsShareFunc void epicsShareAPI epicsThreadSleep(double seconds);
 epicsShareFunc double epicsShareAPI epicsThreadSleepQuantum(void);
 epicsShareFunc epicsThreadId epicsShareAPI epicsThreadGetIdSelf(void);
 epicsShareFunc epicsThreadId epicsShareAPI epicsThreadGetId(const char *name);
+epicsShareFunc int epicsThreadGetCPUs(void);
 
 epicsShareFunc const char * epicsShareAPI epicsThreadGetNameSelf(void);
 
diff --git a/src/libCom/osi/os/RTEMS/osdThread.c b/src/libCom/osi/os/RTEMS/osdThread.c
index 81169ae75..0102157d6 100644
--- a/src/libCom/osi/os/RTEMS/osdThread.c
+++ b/src/libCom/osi/os/RTEMS/osdThread.c
@@ -718,3 +718,12 @@ double epicsThreadSleepQuantum ( void )
 
     return 1.0 / rtemsTicksPerSecond_double;
 }
+
+epicsShareFunc int epicsThreadGetCPUs(void)
+{
+#if defined(RTEMS_SMP)
+    return rtems_smp_get_number_of_processors();
+#else
+    return 1;
+#endif
+}
diff --git a/src/libCom/osi/os/WIN32/osdThread.c b/src/libCom/osi/os/WIN32/osdThread.c
index 155792a30..b20a3458a 100644
--- a/src/libCom/osi/os/WIN32/osdThread.c
+++ b/src/libCom/osi/os/WIN32/osdThread.c
@@ -1101,6 +1101,18 @@ epicsShareFunc void * epicsShareAPI epicsThreadPrivateGet ( epicsThreadPrivateId
     return ( void * ) TlsGetValue ( pPvt->key );
 }
 
+/*
+ * epicsThreadGetCPUs ()
+ */
+epicsShareFunc int epicsThreadGetCPUs ( void )
+{
+    SYSTEM_INFO sysinfo;
+    GetSystemInfo(&sysinfo);
+    if (sysinfo.dwNumberOfProcessors > 0)
+        return sysinfo.dwNumberOfProcessors;
+    return 1;
+}
+
 #ifdef TEST_CODES
 void testPriorityMapping ()
 {
diff --git a/src/libCom/osi/os/posix/osdThread.c b/src/libCom/osi/os/posix/osdThread.c
index 523877b99..18cc0b67b 100644
--- a/src/libCom/osi/os/posix/osdThread.c
+++ b/src/libCom/osi/os/posix/osdThread.c
@@ -3,7 +3,7 @@
 *     National Laboratory.
 * Copyright (c) 2002 The Regents of the University of California, as
 *     Operator of Los Alamos National Laboratory.
-* Copyright (c) 2012 ITER Organization
+* Copyright (c) 2013 ITER Organization.
 * EPICS BASE is distributed subject to a Software License Agreement found
 * in file LICENSE that is included with this distribution. 
 \*************************************************************************/
@@ -873,3 +873,18 @@ epicsShareFunc double epicsShareAPI epicsThreadSleepQuantum ()
     return 1.0 / hz;
 }
 
+epicsShareFunc int epicsThreadGetCPUs(void)
+{
+    long ret;
+#ifdef _SC_NPROCESSORS_ONLN
+    ret = sysconf(_SC_NPROCESSORS_ONLN);
+    if (ret > 0)
+        return ret;
+#endif
+#ifdef _SC_NPROCESSORS_CONF
+    ret = sysconf(_SC_NPROCESSORS_CONF);
+    if (ret > 0)
+        return ret;
+#endif
+    return 1;
+}
diff --git a/src/libCom/osi/os/vxWorks/osdThread.c b/src/libCom/osi/os/vxWorks/osdThread.c
index b2998663f..9a6e8cb3b 100644
--- a/src/libCom/osi/os/vxWorks/osdThread.c
+++ b/src/libCom/osi/os/vxWorks/osdThread.c
@@ -447,3 +447,8 @@ double epicsThreadSleepQuantum ()
     double HZ = sysClkRateGet ();
     return 1.0 / HZ;
 }
+
+epicsShareFunc int epicsThreadGetCPUs(void)
+{
+    return 1;
+}
diff --git a/src/libCom/test/epicsThreadTest.cpp b/src/libCom/test/epicsThreadTest.cpp
index b1e28bb8c..f80d3da7e 100644
--- a/src/libCom/test/epicsThreadTest.cpp
+++ b/src/libCom/test/epicsThreadTest.cpp
@@ -81,7 +81,11 @@ static void thread(void *arg)
 
 MAIN(epicsThreadTest)
 {
-    testPlan(8);
+    testPlan(9);
+
+    unsigned int ncpus = epicsThreadGetCPUs();
+    testDiag("System has %u CPUs", ncpus);
+    testOk1(ncpus > 0);
 
     const int ntasks = 3;
     myThread *myThreads[ntasks];