appr_campaign.sh

#!/bin/bash

if [ $# -ne 2 ]; then
    echo "Usage: $0 <conv> or <conv_rect> <seed>"
    exit 1
fi


file_path1="software/gemmini-rocc-tests/bareMetalC/$1.c"
file_path2="convolution.c"

# Initialize the seed 
sed -i "s/mysrand([0-9]\+)/mysrand($2)/" "$file_path1"
sed -i "s/mysrand([0-9]\+)/mysrand($2)/" "$file_path2"

#set #define IN_COL_DIM in convolution.c to the proper value depending on $1
if [ "$1" == "conv" ]; then
    sed -i "s/#define IN_COL_DIM [0-9]\+/#define IN_COL_DIM 17/" "$file_path2"
else 
    sed -i "s/#define IN_COL_DIM [0-9]\+/#define IN_COL_DIM 28/" "$file_path2"
fi

# For loop to run the script with multiple values of approximate level
for ((i=252; i>=250; i--))
do
    # Modify the appr level in both files
    sed -i "s/gemmini_config_multiplier([0-9]\+, [0-9]\+)/gemmini_config_multiplier($i, 16383)/" "$file_path1"
    sed -i "s/#include \"axx_mults_9x9\/bw_mult_9_9_[0-9]\+.h\"/#include \"axx_mults_9x9\/bw_mult_9_9_$((255 - i)).h\"/" "$file_path2"

    # This script can only be ran with verilator. spike simply doesn't work with the appr multiplier.
    ./scripts/run-verilator.sh $1 > output.txt 2>/dev/null

    # Extract output_mat and save it in gemmini.output.txt
    ./clean_output.sh output.txt

    # Compile and run the golden model which is convolution.c, output_mat is stored in CPU_output.txt
    gcc convolution.c -o conv && ./conv > CPU_output.txt

    # Compare the results, if different exit with error message
    if ! diff gemmini_output.txt CPU_output.txt >/dev/null; then
        echo "gemmini_output.txt and CPU_output.txt are different, campaign aborted."
        exit 1
    fi

    # If results are equal proceed with the script 
    echo "Test with approximate = $i passed."
    

done
#rm output.txt conv
echo "Campaign is done. CPU and Gemmini output match."