added vector add in simulation mode to examples

Author: MiloLurati

examples/hip/vector_add_simulation_mode.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+"""This is the minimal example from the README"""
+
+import numpy
+from kernel_tuner import tune_kernel
+from kernel_tuner.file_utils import store_output_file, store_metadata_file
+import logging
+from collections import OrderedDict
+import os
+
+def tune():
+
+    kernel_string = """
+    __global__ void vector_add(float *c, float *a, float *b, int n) {
+        int i = blockIdx.x * block_size_x + threadIdx.x;
+        if (i<n) {
+            c[i] = a[i] + b[i];
+        }
+    }
+    """
+
+    size = 10000000
+
+    a = numpy.random.randn(size).astype(numpy.float32)
+    b = numpy.random.randn(size).astype(numpy.float32)
+    c = numpy.zeros_like(b)
+    n = numpy.int32(size)
+
+    args = [c, a, b, n]
+
+    tune_params = OrderedDict()
+    tune_params["block_size_x"] = [128+64*i for i in range(15)]
+
+    filename = "vector_add.json"
+    if os.path.isfile(filename):
+        results, env = tune_kernel("vector_add", kernel_string, size, args, tune_params, 
+                                strategy="simulated_annealing",
+                                lang="HIP", simulation_mode=True, cache="vector_add.json")
+
+        # Store the tuning results in an output file
+        store_output_file("vector_add_simulated_annealing.json", results, tune_params)
+
+        return results
+    else:
+        print(f"{filename} does not exist in the directory, run vector_add.py first.")
+
+
+if __name__ == "__main__":
+    tune()