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Minim

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

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Algorithms for minimising functions

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GitHub - sjavis/minim: Algorithms for minimising functions · GitHub
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Minim

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

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Algorithms for minimising functions

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

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

About

Algorithms for minimising functions

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

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

About

Algorithms for minimising functions

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2 stars

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

Minim

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

About

Algorithms for minimising functions

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2 stars

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

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

About

Algorithms for minimising functions

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

Minim

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

About

Algorithms for minimising functions

Resources

Stars

2 stars

Watchers

1 watching

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

Overview

A C++ software library containing energy minimisation subroutines to find equilibium states of generic system potentials. These can utilise MPI parallelisation using built-in frameworks. This library can be used in conjuction with ELLib to perform more complex energy landscape methods.

Installation and use

Download the repository and call make in the root directory to compile the library.

To use in a program, include the minim.h header file and compile with the -lminim flag. For example: mpic++ -I$(MINIM)/include -L$(MINIM)/bin -lminim -DPARALLEL script.cpp -o run.exe

Refer to the examples folder for simple demonstrations of how to use the library.

Library structure

This library is split into several core components:

  • Potential classes provide the interface for calculating the energy and gradient for a given set of coordinates, and includes any potential specific parameters.
  • Minimiser classes are used to perform the energy minimisation.
  • The State class is used to create systems consisting of a potential and a set of coordinates. These are the objects acted upon by the minimisation methods.
  • Communicator classes are used to abstract away the MPI communication used in each State object.

Potential classes:

  • LjNd: 2D and 3D Lennard-Jones particle potential.
  • PhaseField: A phase-field potential for multicomponent fluid systems.
  • BarAndHinge: A triangular mesh bar-and-hinge potential for simulating elastic surfaces.

Minimiser classes:

  • Lbfgs: L-BFGS
  • Fire: FIRE
  • GradDescent: Gradient descent
  • Anneal: Simulated annealing

About

Algorithms for minimising functions

Resources

Stars

2 stars

Watchers

1 watching

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