diff --git a/bin/tools/RunFunctions b/bin/tools/RunFunctions
index 6907b291ef337fd5fc37e84de55dde366bc0ef52..62ce3e27ef30ee05ae73e189e72190af63dcea35 100644
--- a/bin/tools/RunFunctions
+++ b/bin/tools/RunFunctions
@@ -53,18 +53,8 @@ runParallel ()
     if [ -f $log.$APP_RUN ] ; then
         echo "$APP_RUN already run on $PWD: remove log file to run"
     else
-        if [ "$WM_MPLIB" = LAM ]
-        then
-            echo "Starting LAM using $2 machines file"
-            lamboot -v $2
-        fi
         echo "Running $APP_RUN in parallel on $PWD using $1 processes"
         ( mpirun -np $1 $APP_RUN -parallel < /dev/null > log.$APP_RUN 2>&1 )
-        if [ "$WM_MPLIB" = LAM ]
-        then
-            echo "Stopping LAM"
-            lamclean
-        fi
     fi
 }
 
diff --git a/tutorials/discreteMethods/dsmcFoam/supersonicCorner/Allrun b/tutorials/discreteMethods/dsmcFoam/supersonicCorner/Allrun
index 402135df749b6f380b1c870897e27c053918afb4..b36908112841487e6dd4b3e2f62b06cfb8d0167f 100755
--- a/tutorials/discreteMethods/dsmcFoam/supersonicCorner/Allrun
+++ b/tutorials/discreteMethods/dsmcFoam/supersonicCorner/Allrun
@@ -4,8 +4,7 @@
 
 runApplication blockMesh
 runApplication decomposePar
-runParallel dsmcInitialise 4 system/machines
-hostname > system/machines
-runParallel dsmcFoam 4 system/machines
+runParallel dsmcInitialise 4
+runParallel dsmcFoam 4
 runApplication reconstructPar -noLagrangian
 
diff --git a/tutorials/discreteMethods/dsmcFoam/wedge15Ma5/Allrun b/tutorials/discreteMethods/dsmcFoam/wedge15Ma5/Allrun
index 402135df749b6f380b1c870897e27c053918afb4..b36908112841487e6dd4b3e2f62b06cfb8d0167f 100755
--- a/tutorials/discreteMethods/dsmcFoam/wedge15Ma5/Allrun
+++ b/tutorials/discreteMethods/dsmcFoam/wedge15Ma5/Allrun
@@ -4,8 +4,7 @@
 
 runApplication blockMesh
 runApplication decomposePar
-runParallel dsmcInitialise 4 system/machines
-hostname > system/machines
-runParallel dsmcFoam 4 system/machines
+runParallel dsmcInitialise 4
+runParallel dsmcFoam 4
 runApplication reconstructPar -noLagrangian
 
diff --git a/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle/Allrun b/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle/Allrun
index defa2cb875bb32b01d29783e1df55645e777523b..0e158046d9b3c2bd66712da3e68f9eb29df1282a 100755
--- a/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle/Allrun
+++ b/tutorials/discreteMethods/molecularDynamics/mdFoam/nanoNozzle/Allrun
@@ -8,9 +8,8 @@ application=`getApplication`
 runApplication blockMesh
 
 runApplication decomposePar
-hostname > system/machines
 
-runParallel mdInitialise 4 system/machines
-runParallel $application 4 system/machines
+runParallel mdInitialise 4
+runParallel $application 4
 
 runApplication reconstructPar
diff --git a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/Allrun b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/Allrun
index c3c4b5e504a38eb0b761783bd9d0dd0dd4c396eb..9acc76c4435899d0ad892702d7932540dc8174b4 100755
--- a/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/Allrun
+++ b/tutorials/heatTransfer/chtMultiRegionFoam/multiRegionHeater/Allrun
@@ -41,8 +41,7 @@ do
 done
 
 # Run
-hostname > system/machines
-runParallel chtMultiRegionFoam 4 system/machines
+runParallel chtMultiRegionFoam 4
 
 # Reconstruct
 for i in bottomAir topAir heater leftSolid rightSolid
diff --git a/tutorials/mesh/snappyHexMesh/multiRegionMesh/Allrun b/tutorials/mesh/snappyHexMesh/multiRegionMesh/Allrun
index 28b6133b28f996692f991e859675bbbb2212dcd1..5b96ab937d0d0d3fb41119ba514d65ad38a2bc35 100755
--- a/tutorials/mesh/snappyHexMesh/multiRegionMesh/Allrun
+++ b/tutorials/mesh/snappyHexMesh/multiRegionMesh/Allrun
@@ -38,8 +38,7 @@ runApplication chtMultiRegionFoam
 #done
 #
 ## Run
-#hostname > system/machines
-#runParallel chtMultiRegionFoam 4 system/machines
+#runParallel chtMultiRegionFoam 4
 #
 ## Reconstruct
 #for i in bottomAir topAir heater leftSolid rightSolid
diff --git a/tutorials/multiphase/cavitatingFoam/les/Allrun b/tutorials/multiphase/cavitatingFoam/les/Allrun
index ba35093d07f807e09dc9f47fc296f7154d598835..c6b98bda754e16c0a63cee7214e4ce817626bab1 100755
--- a/tutorials/multiphase/cavitatingFoam/les/Allrun
+++ b/tutorials/multiphase/cavitatingFoam/les/Allrun
@@ -36,8 +36,7 @@ cd throttle3D
     mapFields ../throttle -sourceTime latestTime >& log.mapFields
 
     runApplication decomposePar
-    hostname > system/machines
-    runParallel $application 4 system/machines
+    runParallel $application 4
     runApplication reconstructPar
 cd ..
 
diff --git a/tutorials/multiphase/compressibleInterFoam/les/depthCharge3D/Allrun b/tutorials/multiphase/compressibleInterFoam/les/depthCharge3D/Allrun
index 0f09de5ddcc4f9eaa35c2541bc5417a4c54f1942..695ef4d671a213fe27b4b2235133c729c6ccc83a 100755
--- a/tutorials/multiphase/compressibleInterFoam/les/depthCharge3D/Allrun
+++ b/tutorials/multiphase/compressibleInterFoam/les/depthCharge3D/Allrun
@@ -10,6 +10,5 @@ cp 0/alpha1.org 0/alpha1
 cp 0/p.org 0/p
 runApplication setFields
 runApplication decomposePar
-hostname > system/machines
-runParallel $application 4 system/machines
+runParallel $application 4
 runApplication reconstructPar
diff --git a/tutorials/multiphase/interFoam/laminar/Allrun b/tutorials/multiphase/interFoam/laminar/Allrun
index 22d86c6b68687184d7b2b01e816c07d1cdd4d271..03ffbeecde3c00d170e416054f8dfb99a544b4cb 100755
--- a/tutorials/multiphase/interFoam/laminar/Allrun
+++ b/tutorials/multiphase/interFoam/laminar/Allrun
@@ -42,7 +42,6 @@ cd damBreakFine
     runApplication blockMesh
     runApplication setFields
     runApplication decomposePar
-    hostname > system/machines
-    runParallel $application 4 system/machines
+    runParallel $application 4
     runApplication reconstructPar
 cd ..
diff --git a/tutorials/multiphase/interFoam/ras/Allrun b/tutorials/multiphase/interFoam/ras/Allrun
index 45bd89d8499fed7270e1be1f097fbc9199de41d5..c01559fc7760107018a2ad7d0d65f79866915e35 100755
--- a/tutorials/multiphase/interFoam/ras/Allrun
+++ b/tutorials/multiphase/interFoam/ras/Allrun
@@ -38,7 +38,6 @@ cd damBreakFine
     runApplication blockMesh
     runApplication setFields
     runApplication decomposePar
-    hostname > system/machines
-    runParallel $application 4 system/machines
+    runParallel $application 4
     runApplication reconstructPar
 cd ..