Update gemm performance monitoring tool:

- permit to recompute a subset of changesets
 - update changeset list
 - add a few more cases

bench/perf_monitoring/gemm/run_gemm.sh

@@ -6,6 +6,7 @@
 
 # Options:
 #   -up : enforce the recomputation of existing data, and keep best results as a merging strategy
+#   -s  : recompute selected changesets only and keep bests
 
 
 if echo "$*" | grep '\-up' > /dev/null; then
@@ -14,14 +15,30 @@ else
   update=false
 fi
 
-if [ $update == true ]; then
+if echo "$*" | grep '\-s' > /dev/null; then
+  selected=true
+else
+  selected=false
+fi
+
+global_args="$*"
+
+if [ $selected == true ]; then
+ echo "Recompute selected changesets only and keep bests"
+elif [ $update == true ]; then
  echo "(Re-)Compute all changesets and keep bests"
 else
  echo "Skip previously computed changesets"
 fi
 
+
+
 if [ ! -d "eigen_src" ]; then
   hg clone https://bitbucket.org/eigen/eigen eigen_src
+else
+  cd eigen_src
+  hg pull -u
+  cd ..
 fi
 
 if [ ! -z '$CXX' ]; then
@@ -61,17 +78,31 @@ function test_current
   scalar=$2
   name=$3
   
-  prev=`grep $rev "$name.backup" | cut -c 14-`
+  prev=""
+  if [ -e "$name.backup" ]; then
+    prev=`grep $rev "$name.backup" | cut -c 14-`
+  fi
   res=$prev
   count_rev=`echo $prev |  wc -w`
   count_ref=`cat "settings.txt" |  wc -l`
-  if [ $update == true ] || [ $count_rev != $count_ref ]; then
+  if echo "$global_args" | grep "$rev" > /dev/null; then
+    rev_found=true
+  else
+    rev_found=false
+  fi
+#  echo $update et $selected et $rev_found because $rev et "$global_args"
+#  echo $count_rev et $count_ref
+  if [ $update == true ] || [ $count_rev != $count_ref ] || ([ $selected == true ] &&  [ $rev_found == true ]); then
     if $CXX -O2 -DNDEBUG -march=native $CXX_FLAGS -I eigen_src gemm.cpp -DSCALAR=$scalar -o $name; then
       curr=`./$name`
-      echo merge $prev
-      echo with  $curr
+      if [ $count_rev == $count_ref ]; then
+        echo "merge previous $prev"
+        echo "with new       $curr"
+      else
+        echo "got            $curr"
+      fi
       res=`merge "$curr" "$prev"`
-      echo $res
+#       echo $res
       echo "$rev $res" >> $name.out
     else
       echo "Compilation failed, skip rev $rev"
@@ -86,12 +117,12 @@ make_backup $PREFIX"sgemm"
 make_backup $PREFIX"dgemm"
 make_backup $PREFIX"cgemm"
 
-cut -f1 -d"#" < changesets.txt | while read rev
+cut -f1 -d"#" < changesets.txt | grep -E '[[:alnum:]]' | while read rev
 do
   if [ ! -z '$rev' ]; then
     echo "Testing rev $rev"
     cd eigen_src
-    hg up -C $rev
+    hg up -C $rev > /dev/null
     actual_rev=`hg identify | cut -f1 -d' '`
     cd ..