John Walley johnwalley

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 16px sans-serif;
}

.axis path,
.axis line {

## Boxstarter
cinst ansicon
cinst Console2
cinst powershell
cinst sysinternals
cinst dependencywalker
cinst putty
cinst nodejs.install

cinst curl
cinst Wget

## developer-tools.md

      
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                johnwalley
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              August 17, 2022 10:04
            
              
                Developer Tools
              
          
    Developer Tools

Tools I find invaluable in my day-to-day work.
Contents


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## MatrixVectorMultiply1.cs
using System;
using System.Diagnostics;

namespace MatrixVectorMultiply
{
    class MatrixVectorMultiply1
    {
        static void Main(string[] args)
        {
            const int dim = 1024 * 8;

## MatrixVectorMultiply2.cu
#include "cuda_runtime.h"
#include "device_launch_parameters.h"

#include <stdio.h>

cudaError_t multiplyWithCuda(float *c, const float *a, const float *b, unsigned int size);

__global__ void multiplyKernel(float *c, const float *a, const float *b, const int size) {
    int index = threadIdx.x + blockIdx.x * blockDim.x;

## MatrixVectorMultiply1.cu
#include "cuda_runtime.h"
#include "device_launch_parameters.h"

#include <stdio.h>

cudaError_t multiplyWithCuda(float *c, const float *a, const float *b, unsigned int size);

__global__ void multiplyKernel(float *c, const float *a, const float *b, const int size) {
    int index = threadIdx.x + blockIdx.x * blockDim.x;

## MatrixVectorMultiply2.cs
using System;
using System.Diagnostics;

namespace MatrixVectorMultiply
{
    class MatrixVectorMultiply2
    {
        static void Main(string[] args)
        {
            const int dim = 1024 * 8;

## MatrixVectorMultiplyKernel2.cs
for (int i = 0; i < dim; i++)
{
    for (int j = 0; j < dim; j++)
    {
        vecOut[i] += matrix[i, j] * vecIn[i];
    }
}

## MatrixVectorMultiplyKernel1.cs
for (int j = 0; j < dim; j++)
{
    for (int i = 0; i < dim; i++)
    {
        vecOut[j] += matrix[i, j] * vecIn[j];
    }
}

## MatrixVectorMultiplyKernel.cu
__global__ void multiplyKernel(float *c, const float *a, const float *b, const int size) {
    int index = threadIdx.x + blockIdx.x * blockDim.x;

	c[index] = 0;

	for (int j = 0; j < size; ++j)
		c[index] += a[index * size + j] * b[index];
}
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>

	body {
	font: 16px sans-serif;
	}

	.axis path,
	.axis line {
	cinst ansicon
	cinst Console2
	cinst powershell
	cinst sysinternals
	cinst dependencywalker
	cinst putty
	cinst nodejs.install

	cinst curl
	cinst Wget
	using System;
	using System.Diagnostics;

	namespace MatrixVectorMultiply
	{
	class MatrixVectorMultiply1
	{
	static void Main(string[] args)
	{
	const int dim = 1024 * 8;
	#include "cuda_runtime.h"
	#include "device_launch_parameters.h"

	#include <stdio.h>

	cudaError_t multiplyWithCuda(float c, const float a, const float *b, unsigned int size);

	__global__ void multiplyKernel(float c, const float a, const float *b, const int size) {
	int index = threadIdx.x + blockIdx.x * blockDim.x;
	for (int i = 0; i < dim; i++)
	{
	for (int j = 0; j < dim; j++)
	{
	vecOut[i] += matrix[i, j] * vecIn[i];
	}
	}
	for (int j = 0; j < dim; j++)
	{
	for (int i = 0; i < dim; i++)
	{
	vecOut[j] += matrix[i, j] * vecIn[j];
	}
	}
	__global__ void multiplyKernel(float c, const float a, const float *b, const int size) {
	int index = threadIdx.x + blockIdx.x * blockDim.x;

	c[index] = 0;

	for (int j = 0; j < size; ++j)
	c[index] += a[index * size + j] * b[index];
	}