Merging the latest dev from the public branch

1 files changed, 31 insertions, 2 deletions

diff --git a/setup_environment b/setup_environment
index f6a16c5..9578942 100644
--- a/setup_environment
+++ b/setup_environment
@@ -7,9 +7,13 @@ export GPGPUSIM_ROOT="$( cd "$( dirname "$BASH_SOURCE" )" && pwd )"
 
 GPGPUSIM_VERSION_STRING=`cat $GPGPUSIM_ROOT/version | awk '/Version/ {print $8}'`
 #Detect Git branch and commit #
+CURRENT_PWD=`pwd`
+cd $GPGPUSIM_ROOT
 GIT_COMMIT=`git log -n 1 | head -1 | sed -re 's/commit (.*)/\1/'`
-GIT_FILES_CHANGED=`git diff --numstat --cached && git diff --numstat | wc | sed -re 's/^\s+([0-9]+).*/\1/'`
+GIT_FILES_CHANGED=`git diff --numstat | wc | sed -re 's/^\s+([0-9]+).*/\1./'`
+GIT_FILES_CHANGED+=`git diff --numstat --cached | wc | sed -re 's/^\s+([0-9]+).*/\1/'`
 GPGPUSIM_BUILD_STRING="gpgpu-sim_git-commit-$GIT_COMMIT-modified_$GIT_FILES_CHANGED"
+cd $CURRENT_PWD
 
 echo -n "GPGPU-Sim version $GPGPUSIM_VERSION_STRING (build $GPGPUSIM_BUILD_STRING) ";
 
@@ -46,12 +50,14 @@ fi
 CC_VERSION=`gcc --version | head -1 | awk '{for(i=1;i<=NF;i++){ if(match($i,/^[0-9]\.[0-9]\.[0-9]$/))  {print $i; exit 0}}}'`
 
 CUDA_VERSION_STRING=`$CUDA_INSTALL_PATH/bin/nvcc --version | awk '/release/ {print $5;}' | sed 's/,//'`;
-CUDA_VERSION_NUMBER=`echo $CUDA_VERSION_STRING | sed 's/\./ /' | awk '{printf("%02u%02u", 10*int($1), 10*$2);}'`
+export CUDA_VERSION_NUMBER=`echo $CUDA_VERSION_STRING | sed 's/\./ /' | awk '{printf("%02u%02u", 10*int($1), 10*$2);}'`
 if [ $CUDA_VERSION_NUMBER -gt 9100 -o $CUDA_VERSION_NUMBER -lt 2030  ]; then
 	echo "ERROR ** GPGPU-Sim version $GPGPUSIM_VERSION_STRING not tested with CUDA version $CUDA_VERSION_STRING (please see README)";
 	return
 fi
 
+
+
 if [ $# = '1' ] ;
 then
     export GPGPUSIM_CONFIG=gcc-$CC_VERSION/cuda-$CUDA_VERSION_NUMBER/$1
@@ -131,6 +137,29 @@ else
 	echo "configured without a power model.";
 fi
 
+if [ -z "$PTXAS_CUDA_INSTALL_PATH" ]; then
+    export PTXAS_CUDA_INSTALL_PATH=$CUDA_INSTALL_PATH;
+fi
+echo "";
+echo "----------------------------------------------------------------------------";
+echo "INFO - If you only care about PTX execution, ignore this message. GPGPU-Sim supports PTX execution in modern CUDA."
+if [ $CUDA_VERSION_NUMBER -gt 4200 ]; then
+    echo "If you want to run PTXPLUS (sm_1x SASS) with a modern card configuration, the apps and simulator must be compiled with CUDA 4.2."
+    echo "You can still run a PASCAL configuration when compiling with 4.2 by setting the \$PTXAS_CUDA_INSTALL_PATH directory environment variable."
+else
+    echo "If you want to run PTXPLUS (sm_1x SASS) with a modern card configuration - set the envronment variable"
+    echo "\$PTXAS_CUDA_INSTALL_PATH to point a CUDA version compabible with your card configurations (i.e. 8+ for PASCAL, 9+ for VOLTA etc..)"
+    echo "For example: \"export \$PTXAS_CUDA_INSTALL_PATH=/usr/local/cuda-9.1\""
+fi
+echo "The following text describes why:";
+echo "If you are using PTXPLUS, only sm_1x is supported and it requires that the app and simulator binaries are compiled in CUDA 4.2 or less.";
+echo "The simulator requires it since CUDA headers desribe struct sizes in the exec which change from gen to gen.";
+echo "The apps require 4.2 because new versions of CUDA tools have dropped parsing support for generating sm_1x";
+echo "When running using modern config (i.e. pascal) and PTXPLUS with CUDA 4.2, the \$PTXAS_CUDA_INSTALL_PATH env variable is required to get proper register usage"
+echo "(and hence occupancy) using a version of CUDA that knows the register usage on the real card."
+echo "";
+echo "----------------------------------------------------------------------------";
+
 echo "setup_environment succeeded";
 
 export GPGPUSIM_SETUP_ENVIRONMENT_WAS_RUN=1