research/cantera
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Improve performance of reading species info from XML

Browse source 
Avoid an O(N) lookup for the thermo info for each species. Using an
unordered_map would be even better, but there's no portable way to do that
without Boost.
This commit is contained in:
Ray Speth 2013-06-28 21:24:42 +00:00
parent 0a2db03364
commit ee9b153efb
1 changed files with 8 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/thermo/ThermoFactory.cpp
View file

@ -353,6 +353,11 @@ static void formSpeciesXMLNodeList(std::vector<XML_Node*> &spDataNodeList,
}
}
} else {
std::map<std::string, XML_Node*> speciesNodes;
for (size_t k = 0; k < db->nChildren(); k++) {
XML_Node& child = db->child(k);
speciesNodes[child["name"]] = &child;
}
for (size_t k = 0; k < nsp; k++) {
string stemp = spnames[k];
skip = false;
@ -367,11 +372,12 @@ static void formSpeciesXMLNodeList(std::vector<XML_Node*> &spDataNodeList,
if (!skip) {
declared[stemp] = true;
// Find the species in the database by name.
XML_Node* s = db->findByAttr("name", stemp);
if (!s) {
std::map<std::string, XML_Node*>::iterator iter = speciesNodes.find(stemp);
if (iter == speciesNodes.end()) {
throw CanteraError("importPhase","no data for species, \""
+ stemp + "\"");
}
XML_Node* s = iter->second;
nSpecies++;
spNamesList.resize(nSpecies);
spDataNodeList.resize(nSpecies, 0);