First Commit

shared_pthread.js

@@ -0,0 +1,74 @@
+export async function setupWebAssembly( wasmBuffer, workerData, arraySize, threadCount ) {
+
+    const { start, end, sabA, sabB, sabC } = workerData;
+
+    var sizePerThread 	= arraySize / threadCount;
+
+	// const a = new Float32Array(sabA);
+    //const b = new Float32Array(sabB);
+    //const c = new Float32Array(sabC);
+
+   
+    const memory = new WebAssembly.Memory({
+        initial: 2747, // ~172 MB
+        maximum: 4096,  // ~256 MB
+        shared: true
+    });
+
+
+    const { instance } = await WebAssembly.instantiate( wasmBuffer, {
+        env: {
+            memory: memory,
+            emscripten_notify_memory_growth: (index) => {
+                // This function is called when the WASM module wants to grow memory.
+                // You can log it or handle it as needed.
+                console.log(`Memory grew to ${index / 65536} pages`);
+            },
+
+        }
+    });
+
+    const ARRAY_SIZE = 15000576;
+    const a = instance.exports.alloc_float_array(sizePerThread);
+    const b = instance.exports.alloc_float_array(sizePerThread);
+    const c = instance.exports.alloc_float_array(sizePerThread);
+    
+    //if (!a || !b || !c) throw new Error("Failed to allocate memory");
+
+/*
+    // Benchmark initialization
+    const initStart = performance.now();
+
+    instance.exports.init_arrays_range(a, b);
+
+    const initTime = performance.now() - initStart;
+
+    // Benchmark calculation
+    const calcStart = performance.now();
+
+    instance.exports.calculate(a, b, c);
+
+    const calcTime = performance.now() - calcStart;
+
+
+    console.log(`Array initialization time: ${initTime.toFixed(3)} ms`);
+
+    console.log(`Calculation time:          ${calcTime.toFixed(3)} ms`);
+
+    console.log(`Total time:               ${(initTime + calcTime).toFixed(3)} ms`);
+
+    // Sample output
+    const mem = new Float32Array(instance.exports.memory.buffer);
+
+    for (let i = 0; i < 10; i++) {
+
+        console.log(`c[${i}] = ${mem[c/4 + i]}`);
+
+    }
+
+    // Clean up
+    instance.exports.dealloc_float_array(a);
+    instance.exports.dealloc_float_array(b);
+    instance.exports.dealloc_float_array(c);
+    */
+}