Adding CI check for exceeding loss tolerance

Test using test_gpt2cu and comparing internal values to be within a 5 percent range.

.github/workflows/ci_gpu.yml

@@ -39,7 +39,14 @@ jobs:
       - name: Train model (FP32) with gpt2_124M.bin
         run: |
           PRECISION=FP32 make train_gpt2cu
-          ./train_gpt2cu -b 4 -t 64 -l 1e-4 -v 200 -s 200 -a 1 -x 10 -e gpt2_124M.bin
+          ./train_gpt2cu -b 1 -t 64 -d 256 -l 0.0001 -v 200 -s 200 -a 1 -x 10 -r 0 -f 0 -e "gpt2_124M.bin"
+
+      - name: Test for percent loss differential for model (FP32) with gpt2_124M.bin from previous run
+        run: |
+          PRECISION=FP32 make train_gpt2cu
+          ./train_gpt2cu -b 1 -t 64 -d 256 -l 0.0001 -v 200 -s 200 -a 1 -x 10 -r 0 -f 0 -e "gpt2_124M.bin"
+          ./test_gpt2cu > test_gpt2cu_fp32_precision.txt
+          python dev/loss_checker_ci.py -f test_gpt2cu_fp32_precision.txt -s 20 -e 28 -a 5.0
 
       - name: Build FP32 precision
         run: PRECISION=FP32 make test_gpt2cu profile_gpt2cu

dev/loss_checker_ci.py

@@ -0,0 +1,66 @@
+# Description: A script to compare numbers in a file with fixed values and check for accuracy within a specified percent difference.
+# Usage: python loss_checker_ci.py -f <file_path> -s <col_start> -e <col_end> -a <percent_accuracy>
+# Example: python dev/loss_checker_ci.py -f test_gpt2cu_fp32_precision.txt -s 20 -e 28 -a 10.0
+import sys
+import argparse
+
+def read_numbers_from_file(file_path, col_start, col_end):
+    try:
+        numbers = []
+        with open(file_path, 'r') as file:
+            lines = file.readlines()
+            start_index = None
+            for i, line in enumerate(lines):
+                if "step    1/10" in line:
+                    start_index = i
+                    break
+
+            if start_index is None:
+                print("Error: Could not find the string 'step    1/10' in the file.")
+                return None
+
+            # Read 10 rows starting from the identified start row
+            for line in lines[start_index:start_index + 10]:
+                # Extracting the specified columns
+                number = float(line[col_start:col_end].strip())
+                numbers.append(number)
+        return numbers
+    except Exception as e:
+        print(f"Error reading the file: {e}")
+        return None
+
+def compare_numbers(read_values, fixed_values, percent_accuracy):
+    for i in range(len(read_values)):
+        read_value = read_values[i]
+        fixed_value = fixed_values[i]
+        percent_difference = ((read_value - fixed_value) / fixed_value) * 100
+        print(f"Fixed Value: {fixed_value}, Read Value: {read_value}, Percent Difference: {percent_difference:.2f}%")
+        if abs(percent_difference) > percent_accuracy:
+            print(f"Error: Percent difference {percent_difference:.2f}% exceeds the allowed accuracy of {percent_accuracy}%")
+            return 1
+    print("Success: All values are within the allowed accuracy.")
+    return 0
+
+def main():
+    parser = argparse.ArgumentParser(description='Compare numbers in a file with fixed values.')
+    parser.add_argument('-f', '--file', required=True, help='Path to the input file')
+    parser.add_argument('-s', '--col_start', type=int, required=True, help='Starting column index (0-based)')
+    parser.add_argument('-e', '--col_end', type=int, required=True, help='Ending column index (0-based)')
+    parser.add_argument('-a', '--percent_accuracy', type=float, required=True, help='Allowed percent accuracy for comparison')
+
+    args = parser.parse_args()
+
+    # Read numbers from file
+    read_values = read_numbers_from_file(args.file, args.col_start, args.col_end)
+    if read_values is None:
+        return 1
+
+    # Use values from test_gpt2.cu for fp32 precision
+    fixed_values = [5.270009,4.060681,3.320085,2.717550,2.181066,1.653923,1.168050,0.736873,0.401021,0.187493];
+
+    # Compare the numbers and check accuracy
+    result = compare_numbers(read_values, fixed_values, args.percent_accuracy)
+    return result
+
+if __name__ == "__main__":
+    sys.exit(main())