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CTestNormDispIncr.cpp Go to the documentation of this file. /* ****************************************************************** ** ** OpenSees - Open System for Earthquake Engineering Simulation ** ** Pacific Earthquake Engineering Research Center ** ** ** ** ** ** (C) Copyright 1999, The Regents of the University of California ** ** All Rights Reserved. ** ** ** ** Commercial use of this program without express permission of the ** ** University of California, Berkeley, is strictly prohibited. See ** ** file 'COPYRIGHT' in main directory for information on usage and ** ** redistribution, and for a DISCLAIMER OF ALL WARRANTIES. ** ** ** ** Developed by: ** ** Frank McKenna (fmckenna@ce.berkeley.edu) ** ** Gregory L. Fenves (fenves@ce.berkeley.edu) ** ** Filip C. Filippou (filippou@ce.berkeley.edu) ** ** ** ** ****************************************************************** */ // $Revision: 1.4 $ // $Date: 2001/06/14 05:26:47 $ // $Source: /usr/local/cvs/OpenSees/SRC/convergenceTest/CTestNormDispIncr.cpp,v $ #include <CTestNormDispIncr.h> #include <Vector.h> #include <Channel.h> #include <EquiSolnAlgo.h> #include <LinearSOE.h> CTestNormDispIncr::CTestNormDispIncr() :ConvergenceTest(CONVERGENCE_TEST_CTestNormDispIncr), theSOE(0), tol(0), maxNumIter(0), currentIter(0), printFlag(0), norms(1) { } CTestNormDispIncr::CTestNormDispIncr(double theTol, int maxIter, int printIt) :ConvergenceTest(CONVERGENCE_TEST_CTestNormDispIncr), theSOE(0), tol(theTol), maxNumIter(maxIter), currentIter(0), printFlag(printIt), norms(maxIter) { tol = theTol; } CTestNormDispIncr::~CTestNormDispIncr() { } ConvergenceTest* CTestNormDispIncr::getCopy( int iterations ) { CTestNormDispIncr *theCopy ; theCopy = new CTestNormDispIncr( this->tol, iterations, this->printFlag ) ; theCopy->theSOE = this->theSOE ; return theCopy ; } void CTestNormDispIncr::setTolerance(double newTol) { tol = newTol; } int CTestNormDispIncr::setEquiSolnAlgo(EquiSolnAlgo &theAlgo) { theSOE = theAlgo.getLinearSOEptr(); if (theSOE == 0) { cerr << "WARNING: CTestNormDisp::setEquiSolnAlgo() - no SOE\n"; return -1; } else return 0; } int CTestNormDispIncr::test(void) { // check to ensure the SOE has been set - this should not happen if the // return from start() is checked if (theSOE == 0) return -2; // check to ensure the algo does invoke start() - this is needed otherwise // may never get convergence later on in analysis! if (currentIter == 0) { cerr << "WARNING: CTestNormDisp::test() - start() was never invoked.\n"; return -2; } // get the X vector & determine it's norm & save the value in norms vector const Vector &x = theSOE->getX(); double norm = x.Norm(); if (currentIter <= maxNumIter) norms(currentIter-1) = norm; // print the data if required if (printFlag == 1) { cerr << "\t CTestNormDispIncr::test() - iteration: " << currentIter; cerr << " current Norm: " << norm << " (max: " << tol << ")\n"; } if (printFlag == 4) { cerr << "\t CTestNormDispIncr::test() - iteration: " << currentIter; cerr << " current Norm: " << norm << " (max: " << tol << ")\n"; cerr << " Norm deltaX: " << norm << " Norm deltaR: " << (theSOE->getB()).Norm() << endl; cerr << "deltaX: " << x << "deltaR: " << theSOE->getB(); } // // check if the algorithm converged // // if converged - print & return ok if (norm <= tol){ // do some printing first if (printFlag != 0) { if (printFlag == 1) cerr << endl; else if (printFlag == 2) { cerr << "\t CTestNormDispIncr::test() - iteration: " << currentIter; cerr << " current Norm: " << norm << " (max permissable: " << tol << ")\n"; } } // return the number of times test has been called return currentIter; } // algo failed to converged after specified number of iterations - but RETURN OK else if (printFlag == 5 && currentIter >= maxNumIter) { cerr << "WARNING: CTestDispIncr::test() - failed to converge but going on - "; cerr << " current Norm: " << norm << " (max: " << tol << ")\n"; cerr << " Norm deltaX: " << norm << " Norm deltaR: " << (theSOE->getB()).Norm() << endl; return currentIter; } // algo failed to converged after specified number of iterations - return FAILURE -2 else if (currentIter >= maxNumIter) { // failes to converge cerr << "WARNING: CTestDispIncr::test() - failed to converge \n"; cerr << "after: " << currentIter << " iterations\n"; currentIter++; return -2; } // algo not yet converged - increment counter and return -1 else { // has not yet converged currentIter++; return -1; } } int CTestNormDispIncr::start(void) { if (theSOE == 0) { cerr << "WARNING: CTestNormDispIncr::test() - no SOE returning true\n"; return -1; } // set iteration count = 1 norms.Zero(); currentIter = 1; return 0; } int CTestNormDispIncr::getNumTests() { return currentIter; } int CTestNormDispIncr::getMaxNumTests(void) { return maxNumIter; } double CTestNormDispIncr::getRatioNumToMax(void) { double div = maxNumIter; return currentIter/div; } const Vector & CTestNormDispIncr::getNorms() { return norms; } int CTestNormDispIncr::sendSelf(int cTag, Channel &theChannel) { int res = 0; Vector x(2); x(0) = tol; x(1) = maxNumIter; res = theChannel.sendVector(this->getDbTag(), cTag, x); if (res < 0) cerr << "CTestNormDispIncr::sendSelf() - failed to send data\n"; return res; } int CTestNormDispIncr::recvSelf(int cTag, Channel &theChannel, FEM_ObjectBroker &theBroker) { int res = 0; Vector x(2); res = theChannel.recvVector(this->getDbTag(), cTag, x); if (res < 0) { cerr << "CTestNormDispIncr::sendSelf() - failed to send data\n"; tol = 1.0e-8; maxNumIter = 25; } else { tol = x(0); maxNumIter = x(1); norms.resize(maxNumIter); } return res; }

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