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SpiceServer

A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.

Overview

SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.

Simulator support

Xyce

Prerequisites

  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)

Installing Dependencies

On Ubuntu/Debian:

sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc

(UNTESTED) On macOS with Homebrew:

brew install cmake grpc protobuf

Building

mkdir build
cd build
cmake ..
make -j $(nproc)

Running

Start the server (with port set to 50051):

./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt

You can provide override paths to the Python modules for vlsirtools and the Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags (see src/netlister.cc or --help).

Using the example Python client to submit VLSIR netlists

The testdata/cmos_inverter_hdl21 directory contains an example Hdl21 description of a basic CMOS inverter for the Sky130 PDK and a simple testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput protobuf containing the testbench and design under test, which the example client can submit to the spice server:

cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py

Using the example Python client to submit Spice files

The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:

cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:

cd example_client
./generate_protobufs.sh

Then:

  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying

~/go/bin/grpcurl -plaintext localhost:50051 list

netlisters

spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist protobufs to different netlist formats.

It does this by invoking the python scripts directly from within the C++ program. For now, the python scripts are pulled in directly from the vlsir_repo submodule in this repo. An alternative would to make them available as system-wide (or user-wide, or venv-wide) packages instead.

About

Spice simulations behind a VLSIR protobuf+gRPC interface

Resources

Readme
BSD-3-Clause license
Activity

Stars

6 stars

Watchers

0 watching

Forks

2 forks
Report repository

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Packages

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" + '

Skip to content
BranchesTags
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SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
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Contributors
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, '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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SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
Releases
Packages
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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SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
Releases
Packages
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
SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
Releases
Packages
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
SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
Releases
Packages
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('^' + ".*" + '

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SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
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Contributors
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, '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
BranchesTags
Repository files navigation
SpiceServer
A gRPC service for executing SPICE circuit simulations via various simulators as subprocesses.
Overview
SpiceServer accepts gRPC requests containing SPICE netlists and executes them using the specified simulator (e.g., ngspice, Xyce, LTspice). Results are streamed back to the client in real-time.
Simulator support
Xyce
Prerequisites
  • CMake 3.15 or higher
  • C++17 compatible compiler
  • gRPC and Protocol Buffers
  • A SPICE simulator (ngspice, Xyce, etc.)
Installing Dependencies
On Ubuntu/Debian:
sudo apt-get update
sudo apt-get install -y cmake build-essential
sudo apt-get install -y libgrpc++-dev libprotobuf-dev protobuf-compiler-grpc
(UNTESTED) On macOS with Homebrew:
brew install cmake grpc protobuf
Building
mkdir build
cd build
cmake ..
make -j $(nproc)
Running
Start the server (with port set to 50051):
./spice_server --port=50051 --nofind_simulators --static_installs=../static_installs.pb.txt
You can provide override paths to the Python modules for vlsirtools and the
Python VLSIR bindings with the --python_vlsir and --python_vlsirtools flags
(see src/netlister.cc or --help).
Using the example Python client to submit VLSIR netlists
The testdata/cmos_inverter_hdl21 directory contains an example Hdl21
description of a basic CMOS inverter for the Sky130 PDK and a simple
testbench to demonstrate it. Hdl21 can output a vlsir::spice::SimInput
protobuf containing the testbench and design under test, which the example
client can submit to the spice server:
cd example_client
PYTHONPATH=${HOME}/src/Hdl21::${HOME}/src/Hdl21/pdks/Sky130 ./client.py
Using the example Python client to submit Spice files
The testdata directory contains example netlists to run through simulators. For example, you can run Xyce on cmost_inverter by running:
cd testdata/cmost_inverter
/path/to/Xyce main.sp

Or you could have the spice_server run it for you by sending the test data to the server with the example python3 client.py. First generat the required protobufs:
cd example_client
./generate_protobufs.sh

Then:
  1. changing the values in static_installs.pb.txt to suit your system;
  2. running the server with the above comand; and
  3. running the client on the testdata dir:
example_client/client.py testdata/cmos_inverter testdata/cmos_inverter/main.sp

Querying
~/go/bin/grpcurl -plaintext localhost:50051 list
netlisters
spice_server uses scripts in VLSIR's VlsirTools to convert VLSIR netlist
protobufs to different netlist formats.
It does this by invoking the python scripts directly from within the C++
program. For now, the python scripts are pulled in directly from the vlsir_repo
submodule in this repo. An alternative would to make them available as
system-wide (or user-wide, or venv-wide) packages instead.
About
Spice simulations behind a VLSIR protobuf+gRPC interface
Resources
Readme
BSD-3-Clause license
Activity
Stars
6 stars
Watchers
0 watching
Forks
2 forks
Report repository
Releases
Packages
Contributors
Languages