Function randomMatrix

test/benchmark.js:12–21

(width, height)

const a = randomMatrix(size, size);
const b = randomMatrix(size, size);
function randomMatrix(width, height) {
  const matrix = new Array(height);
  for (let y = 0; y < height; y++) {
    const row = matrix[y] = new Float32Array(width);
    for (let x = 0; x < width; x++) {
      row[x] = Math.random();
    }
  }
  return matrix;
}

const gpuKernel = gpu
  .createKernel(function(a, b) {