LCOV - code coverage report
Current view: top level - core - Action.cpp (source / functions) Hit Total Coverage
Test: plumed test coverage Lines: 197 239 82.4 %
Date: 2025-03-25 09:33:27 Functions: 32 38 84.2 %

          Line data    Source code
       1             : /* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
       2             :    Copyright (c) 2011-2023 The plumed team
       3             :    (see the PEOPLE file at the root of the distribution for a list of names)
       4             : 
       5             :    See http://www.plumed.org for more information.
       6             : 
       7             :    This file is part of plumed, version 2.
       8             : 
       9             :    plumed is free software: you can redistribute it and/or modify
      10             :    it under the terms of the GNU Lesser General Public License as published by
      11             :    the Free Software Foundation, either version 3 of the License, or
      12             :    (at your option) any later version.
      13             : 
      14             :    plumed is distributed in the hope that it will be useful,
      15             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      16             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17             :    GNU Lesser General Public License for more details.
      18             : 
      19             :    You should have received a copy of the GNU Lesser General Public License
      20             :    along with plumed.  If not, see <http://www.gnu.org/licenses/>.
      21             : +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
      22             : #include "Action.h"
      23             : #include "ActionAtomistic.h"
      24             : #include "ActionWithValue.h"
      25             : #include "ActionWithArguments.h"
      26             : #include "ActionWithVirtualAtom.h"
      27             : #include "ActionForInterface.h"
      28             : #include "DomainDecomposition.h"
      29             : #include "PbcAction.h"
      30             : #include "ActionToPutData.h"
      31             : #include "ActionToGetData.h"
      32             : #include "PlumedMain.h"
      33             : #include "tools/Log.h"
      34             : #include "tools/Exception.h"
      35             : #include "tools/Communicator.h"
      36             : #include "ActionSet.h"
      37             : #include <iostream>
      38             : 
      39             : namespace PLMD {
      40             : 
      41             : Keywords ActionOptions::emptyKeys;
      42             : 
      43       50979 : ActionOptions::ActionOptions(PlumedMain&p,const std::vector<std::string>&l):
      44       50979 :   plumed(p),
      45       50979 :   line(l),
      46       50979 :   keys(emptyKeys) {
      47       50979 : }
      48             : 
      49       50977 : ActionOptions::ActionOptions(const ActionOptions&ao,const Keywords&keys):
      50       50977 :   plumed(ao.plumed),
      51       50977 :   line(ao.line),
      52       50977 :   keys(keys) {
      53       50977 : }
      54             : 
      55       73717 : void Action::registerKeywords( Keywords& keys ) {
      56       73717 :   plumed_assert( keys.size()==0 );
      57       73717 :   keys.add( "hidden", "LABEL", "a label for the action so that its output can be referenced in the input to other actions.  Actions with scalar output are referenced using their label only.  Actions with vector output must have a separate label for every component.  Individual components are then referred to using label.component" );
      58       73717 :   keys.reserve("optional","UPDATE_FROM","Only update this action from this time");
      59       73717 :   keys.reserve("optional","UPDATE_UNTIL","Only update this action until this time");
      60       73717 :   keys.reserve("optional","RESTART","allows per-action setting of restart (YES/NO/AUTO)");
      61       73717 : }
      62             : 
      63       50977 : Action::Action(const ActionOptions&ao):
      64       50977 :   name(ao.line[0]),
      65       50977 :   line(ao.line),
      66       50977 :   update_from(std::numeric_limits<double>::max()),
      67       50977 :   update_until(std::numeric_limits<double>::max()),
      68       50977 :   timestep(0),
      69       50977 :   active(false),
      70       50977 :   restart(ao.plumed.getRestart()),
      71       50977 :   doCheckPoint(ao.plumed.getCPT()),
      72       50977 :   never_activate(name=="CONSTANT"),
      73       50977 :   plumed(ao.plumed),
      74       50977 :   log(plumed.getLog()),
      75       50977 :   comm(plumed.comm),
      76       50977 :   multi_sim_comm(plumed.multi_sim_comm),
      77      101954 :   keywords(ao.keys) {
      78             :   // Retrieve the timestep and save it
      79       50977 :   resetStoredTimestep();
      80             : 
      81             :   line.erase(line.begin());
      82       50977 :   if( !keywords.exists("NO_ACTION_LOG") ) {
      83       35376 :     log.printf("Action %s\n",name.c_str());
      84       35376 :     if(ao.fullPath.length()>0) {
      85          41 :       log<<"  from library: "<<ao.fullPath<<"\n";
      86             :     }
      87             :   }
      88             : 
      89       50977 :   if(comm.Get_rank()==0) {
      90       37028 :     replica_index=multi_sim_comm.Get_rank();
      91             :   }
      92       50977 :   comm.Bcast(replica_index,0);
      93             : 
      94       50977 :   if ( keywords.exists("LABEL") ) {
      95      101486 :     parse("LABEL",label);
      96             :   }
      97       50977 :   if(label.length()==0) {
      98             :     std::string s;
      99        3227 :     Tools::convert(plumed.getActionSet().size()-plumed.getActionSet().select<ActionForInterface*>().size(),s);
     100        6454 :     label="@"+s;
     101       47750 :   } else if ( label.find(".")!=std::string::npos ) {
     102          12 :     warning("using full stop in an action label should be avaoided as . has a special meaning in PLUMED action labels");
     103             :   }
     104       50977 :   if( plumed.getActionSet().selectWithLabel<Action*>(label) ) {
     105           0 :     error("label " + label + " has been already used");
     106             :   }
     107       50977 :   if( !keywords.exists("NO_ACTION_LOG") ) {
     108       35376 :     log.printf("  with label %s\n",label.c_str());
     109             :   }
     110       50977 :   if ( keywords.exists("UPDATE_FROM") ) {
     111        4564 :     parse("UPDATE_FROM",update_from);
     112             :   }
     113       50977 :   if( !keywords.exists("NO_ACTION_LOG") && update_from!=std::numeric_limits<double>::max()) {
     114           5 :     log.printf("  only update from time %f\n",update_from);
     115             :   }
     116       50977 :   if ( keywords.exists("UPDATE_UNTIL") ) {
     117        4564 :     parse("UPDATE_UNTIL",update_until);
     118             :   }
     119       50977 :   if( !keywords.exists("NO_ACTION_LOG") && update_until!=std::numeric_limits<double>::max()) {
     120           5 :     log.printf("  only update until time %f\n",update_until);
     121             :   }
     122       50977 :   if ( keywords.exists("RESTART") ) {
     123        2247 :     std::string srestart="AUTO";
     124        2246 :     parse("RESTART",srestart);
     125        2246 :     if( plumed.parseOnlyMode() ) {
     126           0 :       restart=false;
     127        2246 :     } else if(srestart=="YES") {
     128         170 :       restart=true;
     129        2076 :     } else if(srestart=="NO") {
     130          22 :       restart=false;
     131        2054 :     } else if(srestart=="AUTO") {
     132             :       // do nothing, this is the default
     133             :     } else {
     134           2 :       error("RESTART should be either YES, NO, or AUTO");
     135             :     }
     136             :   }
     137       50977 : }
     138             : 
     139      100436 : void Action::resetStoredTimestep() {
     140      100436 :   ActionWithValue* ts = plumed.getActionSet().selectWithLabel<ActionWithValue*>("timestep");
     141      100436 :   if( ts ) {
     142       94183 :     timestep = (ts->copyOutput(0))->get();
     143             :   }
     144      100436 : }
     145             : 
     146      101952 : Action::~Action() {
     147       50976 :   if(files.size()!=0) {
     148           0 :     std::cerr<<"WARNING: some files open in action "+getLabel()+" where not properly closed. This could lead to data loss!!\n";
     149             :   }
     150      101952 : }
     151             : 
     152          82 : FILE* Action::fopen(const char *path, const char *mode) {
     153             :   bool write(false);
     154         164 :   for(const char*p=mode; *p; p++)
     155          82 :     if(*p=='w' || *p=='a' || *p=='+') {
     156             :       write=true;
     157             :     }
     158             :   FILE* fp;
     159          82 :   if(write && comm.Get_rank()!=0) {
     160           0 :     fp=plumed.fopen("/dev/null",mode);
     161             :   } else {
     162          82 :     fp=plumed.fopen(path,mode);
     163             :   }
     164          81 :   files.insert(fp);
     165          81 :   return fp;
     166             : }
     167             : 
     168          99 : int Action::fclose(FILE*fp) {
     169             :   files.erase(fp);
     170          99 :   return plumed.fclose(fp);
     171             : }
     172             : 
     173       60867 : void Action::fflush() {
     174       60867 :   for(const auto & p : files) {
     175           0 :     std::fflush(p);
     176             :   }
     177       60867 : }
     178             : 
     179           0 : std::string Action::getKeyword(const std::string& key) {
     180             :   // Check keyword has been registered
     181           0 :   plumed_massert(keywords.exists(key), "keyword " + key + " has not been registered");
     182             : 
     183             :   std::string outkey;
     184           0 :   if( Tools::getKey(line,key,outkey ) ) {
     185           0 :     return key + outkey;
     186             :   }
     187             : 
     188           0 :   if( keywords.style(key,"compulsory") ) {
     189           0 :     if( keywords.getDefaultValue(key,outkey) ) {
     190           0 :       if( outkey.length()==0 ) {
     191           0 :         error("keyword " + key + " has weird default value");
     192             :       }
     193           0 :       return key + "=" +  outkey;
     194             :     } else {
     195           0 :       error("keyword " + key + " is compulsory for this action");
     196             :     }
     197             :   }
     198           0 :   return "";
     199             : }
     200             : 
     201       95551 : void Action::parseFlag(const std::string&key,bool & t) {
     202             :   // Check keyword has been registered
     203       95551 :   plumed_massert(keywords.exists(key), "keyword " + key + " has not been registered");
     204             :   // Check keyword is a flag
     205      191102 :   if(!keywords.style(key,"nohtml")) {
     206      191102 :     plumed_massert( keywords.style(key,"vessel") || keywords.style(key,"flag") || keywords.style(key,"hidden"), "keyword " + key + " is not a flag");
     207             :   }
     208             : 
     209             :   // Read in the flag otherwise get the default value from the keywords object
     210       95551 :   if(!Tools::parseFlag(line,key,t)) {
     211      167088 :     if( keywords.style(key,"nohtml") || keywords.style(key,"vessel") ) {
     212           0 :       t=false;
     213       83544 :     } else if ( !keywords.getLogicalDefault(key,t) ) {
     214           0 :       log.printf("ERROR in action %s with label %s : flag %s has no default",name.c_str(),label.c_str(),key.c_str() );
     215           0 :       plumed_error();
     216             :     }
     217             :   }
     218       95551 : }
     219             : 
     220     1262863 : void Action::addDependency(Action*action) {
     221             :   bool found=false;
     222    40065097 :   for(const auto & d : after ) {
     223    39065322 :     if( action==d ) {
     224             :       found=true;
     225             :       break;
     226             :     }
     227             :   }
     228     1262863 :   if( !found ) {
     229      999775 :     after.push_back(action);
     230             :   }
     231     1262863 : }
     232             : 
     233      571383 : bool Action::checkForDependency( Action* action ) {
     234     1124757 :   for(const auto & d : after) {
     235      563943 :     if( action==d ) {
     236             :       return true;
     237             :     }
     238      557562 :     if( d->checkForDependency(action) ) {
     239             :       return true;
     240             :     }
     241             :   }
     242             :   return false;
     243             : }
     244             : 
     245     5246786 : void Action::activate() {
     246             : // This is set to true if actions are only need to be computed in setup (during checkRead)
     247     5246786 :   if( never_activate ) {
     248             :     return;
     249             :   }
     250             : // preparation step is called only the first time an Action is activated.
     251             : // since it could change its dependences (e.g. in an ActionAtomistic which is
     252             : // accessing to a virtual atom), this is done just before dependencies are
     253             : // activated
     254     5132420 :   if(!active) {
     255     2649833 :     this->unlockRequests();
     256     2649833 :     prepare();
     257     2649833 :     this->lockRequests();
     258             :   } else {
     259             :     return;
     260             :   }
     261     6544855 :   for(const auto & p : after) {
     262     3895022 :     p->activate();
     263             :   }
     264     2649833 :   active=true;
     265             : }
     266             : 
     267        2228 : void Action::setOption(const std::string &s) {
     268             : // This overloads the action and activate some options
     269        2228 :   options.insert(s);
     270        4370 :   for(const auto & p : after) {
     271        2142 :     p->setOption(s);
     272             :   }
     273        2228 : }
     274             : 
     275           0 : void Action::clearOptions() {
     276             : // This overloads the action and activate some options
     277             :   options.clear();
     278           0 : }
     279             : 
     280             : 
     281      199526 : void Action::clearDependencies() {
     282             :   after.clear();
     283      199526 : }
     284             : 
     285       66824 : void Action::checkRead() {
     286       66824 :   if(!line.empty()) {
     287           1 :     std::string msg="cannot understand the following words from the input line : ";
     288           2 :     for(unsigned i=0; i<line.size(); i++) {
     289           1 :       if(i>0) {
     290           0 :         msg = msg + ", ";
     291             :       }
     292           2 :       msg = msg + line[i];
     293             :     }
     294           1 :     error(msg);
     295             :   }
     296       66823 :   setupConstantValues(false);
     297       66823 : }
     298             : 
     299       95085 : void Action::setupConstantValues( const bool& have_atoms ) {
     300       95085 :   if( have_atoms ) {
     301             :     // This ensures that we switch off actions that only depend on constant when passed from the
     302             :     // MD code on the first step
     303       28262 :     ActionAtomistic* at = castToActionAtomistic();
     304       28262 :     ActionWithValue* av = castToActionWithValue();
     305       28262 :     if( at && av ) {
     306       15990 :       never_activate=av->getNumberOfComponents()>0;
     307       16037 :       for(unsigned i=0; i<av->getNumberOfComponents(); ++i) {
     308       15990 :         if( !av->copyOutput(i)->isConstant() ) {
     309       15943 :           never_activate=false;
     310       15943 :           break;
     311             :         }
     312             :       }
     313             :     }
     314             :   }
     315       95085 :   ActionWithArguments* aa = castToActionWithArguments();
     316      114252 :   if( aa && aa->getNumberOfArguments()>0 && getName()!="BIASVALUE" ) {
     317       18535 :     never_activate = aa->calculateConstantValues( have_atoms );
     318             :   }
     319       95085 : }
     320             : 
     321     5469328 : long long int Action::getStep()const {
     322     5469328 :   return plumed.getStep();
     323             : }
     324             : 
     325     3721474 : double Action::getTime()const {
     326     3721474 :   return timestep*getStep();
     327             : }
     328             : 
     329      219887 : double Action::getTimeStep()const {
     330      219887 :   return timestep;
     331             : }
     332             : 
     333         682 : double Action::getkBT() {
     334         682 :   double temp=-1.0;
     335         682 :   if( keywords.exists("TEMP") ) {
     336        1336 :     parse("TEMP",temp);
     337             :   }
     338        1698 :   if(temp>=0.0 && keywords.style("TEMP","optional") ) {
     339         421 :     return getKBoltzmann()*temp;
     340             :   }
     341         261 :   ActionForInterface* kb=plumed.getActionSet().selectWithLabel<ActionForInterface*>("kBT");
     342             :   double kbt=0;
     343         261 :   if(kb) {
     344           3 :     kbt=(kb->copyOutput(0))->get();
     345             :   }
     346         377 :   if( temp>=0 && keywords.style("TEMP","compulsory") ) {
     347          58 :     double kB=getKBoltzmann();
     348          58 :     if( kbt>0 && std::abs(kbt-kB*temp)>1e-4) {
     349             :       std::string strt1, strt2;
     350           0 :       Tools::convert( temp, strt1 );
     351           0 :       Tools::convert( kbt/kB, strt2 );
     352           0 :       warning("using TEMP=" + strt1 + " while MD engine uses " + strt2 + "\n");
     353             :     }
     354          58 :     kbt = kB*temp;
     355          58 :     plumed_massert(kbt>0,"your MD engine does not pass the temperature to plumed, you must specify it using TEMP");
     356             :     return kbt;
     357             :   }
     358             :   return kbt;
     359             : }
     360             : 
     361           0 : void Action::exit(int c) {
     362           0 :   plumed.exit(c);
     363           0 : }
     364             : 
     365           0 : void Action::calculateNumericalDerivatives( ActionWithValue* a ) {
     366           0 :   plumed_merror("if you get here it means that you are trying to use numerical derivatives for a class that does not implement them");
     367             : }
     368             : 
     369     1025713 : void Action::prepare() {
     370     1025713 :   return;
     371             : }
     372             : 
     373          28 : [[noreturn]] void Action::error( const std::string & msg ) const {
     374          28 :   log.printf("ERROR in input to action %s with label %s : %s \n \n", name.c_str(), label.c_str(), msg.c_str() );
     375          84 :   plumed_merror("ERROR in input to action " + name + " with label " + label + " : " + msg );
     376             : }
     377             : 
     378        4209 : void Action::warning( const std::string & msg ) {
     379        4209 :   log.printf("WARNING for action %s with label %s : %s \n", name.c_str(), label.c_str(), msg.c_str() );
     380        4209 : }
     381             : 
     382           0 : void Action::calculateFromPDB( const PDB& pdb ) {
     383           0 :   activate();
     384           0 :   for(const auto & p : after) {
     385           0 :     ActionWithValue*av=castToActionWithValue();
     386           0 :     if(av) {
     387           0 :       av->clearInputForces();
     388           0 :       av->clearDerivatives();
     389             :     }
     390           0 :     p->readAtomsFromPDB( pdb );
     391           0 :     p->calculate();
     392             :   }
     393           0 :   readAtomsFromPDB( pdb );
     394           0 :   calculate();
     395           0 : }
     396             : 
     397       30198 : bool Action::getExchangeStep()const {
     398       30198 :   return plumed.getExchangeStep();
     399             : }
     400             : 
     401          40 : std::string Action::cite(const std::string&s) {
     402          40 :   return plumed.cite(s);
     403             : }
     404             : 
     405             : /// Check if action should be updated.
     406     2550282 : bool Action::checkUpdate()const {
     407     2550282 :   double t=getTime();
     408     2550282 :   if(t<update_until && (update_from==std::numeric_limits<double>::max() || t>=update_from)) {
     409             :     return true;
     410             :   } else {
     411         510 :     return false;
     412             :   }
     413             : }
     414             : 
     415        1340 : bool Action::getCPT() const {
     416        1340 :   return plumed.getCPT();
     417             : }
     418             : 
     419    16247434 : const Units& Action::getUnits() const {
     420    16247434 :   return plumed.getUnits();
     421             : }
     422             : 
     423        2199 : bool Action::usingNaturalUnits() const {
     424        2199 :   return plumed.usingNaturalUnits();
     425             : }
     426             : 
     427         714 : double Action::getKBoltzmann() const {
     428         714 :   if( usingNaturalUnits() ) {
     429             :     return 1.0;
     430             :   } else {
     431         714 :     return kBoltzmann/getUnits().getEnergy();
     432             :   }
     433             : }
     434             : 
     435          44 : std::string Action::writeInGraph() const {
     436          44 :   std::string nam=getName();
     437          44 :   std::size_t u=nam.find_last_of("_");
     438          44 :   std::string sub=nam.substr(u+1);
     439         118 :   if( sub=="SCALAR" || sub=="VECTOR" || sub=="GRID" ) {
     440           8 :     return nam.substr(0,u);
     441             :   }
     442             :   return nam;
     443             : }
     444             : 
     445             : }
     446             : 

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