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Occamy

This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.

Getting Started

To get started, check out the getting started guide.

Content

What can you expect to find in this repository?

  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.

This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.

License

Occamy is being made available under permissive open source licenses.

The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:

  • sw/
  • util/

The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:

  • hw/

About

A high-efficiency system-on-chip for floating-point compute workloads.

pulp-platform.github.io/occamy/

Resources

Readme
Apache-2.0 license
Activity
Custom properties

Stars

54 stars

Watchers

6 watching

Forks

21 forks
Report repository

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
Repository files navigation
CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Repository files navigation
CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

Skip to content
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CILicense
Occamy
This repository hosts the hardware and software for the Occamy system-on-chip and its generator. Occamy is a high-efficiency system-on-chip coupling a CVA6 Linux-capable manager core with a many-core accelerator for compute-intensive floating-point workloads, building on the Snitch cluster architecture. It is developed as part of the PULP project, a joint effort between ETH Zurich and the University of Bologna.
Getting Started
To get started, check out the getting started guide.
Content
What can you expect to find in this repository?
  • The Occamy system-on-chip generator and hardware sources.
  • A runtime and example applications for Occamy.
  • An RTL simulation environment for Questa Advanced Simulator.
This code was previously hosted in the Snitch monorepo and was spun off into its own repository to simplify maintenance and dependency handling. The Snitch cluster, on which the Occamy accelerator is based upon, has also moved to its own repo.
License
Occamy is being made available under permissive open source licenses.
The following files are released under Apache License 2.0 (Apache-2.0) see LICENSE:
  • sw/
  • util/
The following files are released under Solderpad v0.51 (SHL-0.51) see hw/LICENSE:
  • hw/
About
A high-efficiency system-on-chip for floating-point compute workloads.
pulp-platform.github.io/occamy/
Resources
Readme
Apache-2.0 license
Activity
Custom properties
Stars
54 stars
Watchers
6 watching
Forks
21 forks
Report repository
Releases
Packages
Used by
Contributors
Languages