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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CUDA Grid Visualizer</title>
<style>
:root {
--bg-color: #121212;
--text-color: #e0e0e0;
--input-bg: #2a2a2a;
--input-text: #ffffff;
--grid-bg: #1e272e;
--thread-bg: #34495e;
--thread-hover: #3498db;
--info-bg: #1a2327;
}
body {
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
display: flex;
flex-direction: column;
align-items: center;
padding: 20px;
background-color: var(--bg-color);
color: var(--text-color);
transition: all 0.3s ease;
min-height: 100vh;
margin: 0;
}
h1 {
margin-bottom: 20px;
font-size: 2.5em;
text-align: center;
color: #3498db;
}
#controls {
display: flex;
flex-wrap: wrap;
gap: 20px;
margin-bottom: 30px;
justify-content: center;
background-color: var(--input-bg);
padding: 20px;
border-radius: 10px;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}
.input-group {
display: flex;
flex-direction: column;
align-items: center;
}
label {
margin-bottom: 8px;
font-size: 1em;
color: #3498db;
}
input {
width: 70px;
padding: 10px;
border: none;
border-radius: 5px;
background-color: var(--input-bg);
color: var(--input-text);
text-align: center;
font-size: 1.1em;
transition: all 0.3s ease;
}
input:focus {
outline: none;
box-shadow: 0 0 0 2px #3498db;
}
#grid-container {
display: flex;
flex-wrap: wrap;
gap: 2px;
background-color: var(--grid-bg);
padding: 4px;
border-radius: 10px;
box-shadow: 0 6px 10px rgba(0, 0, 0, 0.2);
max-width: 90vw;
justify-content: flex-start;
}
.thread {
width: 30px;
height: 30px;
display: flex;
justify-content: center;
align-items: center;
font-size: 0.9em;
cursor: pointer;
border-radius: 4px;
transition: all 0.2s ease;
}
.thread:hover {
transform: scale(1.1);
z-index: 1;
}
#info-panel {
margin-top: 30px;
padding: 20px;
background-color: var(--info-bg);
border-radius: 10px;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
max-width: 350px;
width: 100%;
}
#info-panel p {
margin: 10px 0;
font-size: 1em;
}
#info-panel strong {
color: #3498db;
}
</style>
</head>
<body>
<h1>CUDA Grid Visualizer</h1>
<div id="controls">
<div class="input-group">
<label for="num-blocks">Number of Blocks</label>
<input type="number" id="num-blocks" value="4" min="1" max="64">
</div>
<div class="input-group">
<label for="num-threads">Threads per Block</label>
<input type="number" id="num-threads" value="16" min="1" max="1024">
</div>
<div class="input-group">
<label for="grid-width">Grid Width (threads)</label>
<input type="number" id="grid-width" value="32" min="1" max="256">
</div>
</div>
<div id="grid-container"></div>
<div id="info-panel"></div>
<script>
function updateGrid() {
const numBlocks = parseInt(document.getElementById('num-blocks').value);
const numThreads = parseInt(document.getElementById('num-threads').value);
const gridWidth = parseInt(document.getElementById('grid-width').value);
const gridContainer = document.getElementById('grid-container');
gridContainer.innerHTML = '';
gridContainer.style.width = `${gridWidth * 32}px`; // 30px thread width + 2px gap
// Generate a list of distinct colors for blocks
const blockColors = generateBlockColors(numBlocks);
for (let blockIdx = 0; blockIdx < numBlocks; blockIdx++) {
for (let threadIdx = 0; threadIdx < numThreads; threadIdx++) {
const thread = document.createElement('div');
thread.className = 'thread';
thread.textContent = threadIdx;
thread.style.backgroundColor = blockColors[blockIdx];
thread.addEventListener('mouseover', () => showInfo(blockIdx, threadIdx, numThreads));
thread.addEventListener('mouseout', clearInfo);
gridContainer.appendChild(thread);
}
}
}
function generateBlockColors(numBlocks) {
const colors = [];
for (let i = 0; i < numBlocks; i++) {
const hue = (i * 137.5) % 360; // Use golden angle approximation for distribution
colors.push(`hsl(${hue}, 70%, 60%)`);
}
return colors;
}
function showInfo(blockIdx, threadIdx, numThreads) {
const globalThreadId = blockIdx * numThreads + threadIdx;
const infoPanel = document.getElementById('info-panel');
infoPanel.innerHTML = `
<p><strong>Block Index:</strong> ${blockIdx}</p>
<p><strong>Thread Index in Block:</strong> ${threadIdx}</p>
<p><strong>Global Thread ID:</strong> ${globalThreadId}</p>
`;
}
function clearInfo() {
document.getElementById('info-panel').innerHTML = '';
}
function debounce(func, wait) {
let timeout;
return function executedFunction(...args) {
const later = () => {
clearTimeout(timeout);
func(...args);
};
clearTimeout(timeout);
timeout = setTimeout(later, wait);
};
}
const debouncedUpdateGrid = debounce(updateGrid, 300);
document.querySelectorAll('input').forEach(input => {
input.addEventListener('input', debouncedUpdateGrid);
});
updateGrid();
</script>
</body>
</html>
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