Merge pull request cms-sw#2537 from Dr15Jones/reduceRelValThreadsTo4

Reduced the number of threads used for testing from 8 to 4

Author: ktf

FWCore/Concurrency/python/dropNonMTSafe.py

@@ -24,7 +24,7 @@ def dropNonMTSafe(process):
   _dropFromPaths(process,"SiStripMonitorTrackCommon")
   _dropFromPaths(process,"SiStripMonitorTrack_hi")
 
-  process.options = cms.untracked.PSet(numberOfThreads = cms.untracked.uint32(8),
+  process.options = cms.untracked.PSet(numberOfThreads = cms.untracked.uint32(4),
                                        sizeOfStackForThreadsInKB = cms.untracked.uint32(10*1024),
                                        numberOfStreams = cms.untracked.uint32(0))