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CTestRelativeNormDispIncr.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: 1.3 $ // $Date: 2005/12/15 00:19:28 $ // $Source: /usr/local/cvs/OpenSees/SRC/convergenceTest/CTestRelativeNormDispIncr.cpp,v $ #include <CTestRelativeNormDispIncr.h> #include <Vector.h> #include <Channel.h> #include <EquiSolnAlgo.h> #include <LinearSOE.h> CTestRelativeNormDispIncr::CTestRelativeNormDispIncr() : ConvergenceTest(CONVERGENCE_TEST_CTestRelativeNormDispIncr), theSOE(0), tol(0), maxNumIter(0), currentIter(0), printFlag(0), norms(1), norm0(0.0), nType(2) { } CTestRelativeNormDispIncr::CTestRelativeNormDispIncr(double theTol, int maxIter, int printIt, int normType) : ConvergenceTest(CONVERGENCE_TEST_CTestRelativeNormDispIncr), theSOE(0), tol(theTol), maxNumIter(maxIter), currentIter(0), printFlag(printIt), norms(maxIter), norm0(0.0), nType(normType) { } CTestRelativeNormDispIncr::~CTestRelativeNormDispIncr() { } ConvergenceTest* CTestRelativeNormDispIncr::getCopy(int iterations) { CTestRelativeNormDispIncr *theCopy ; theCopy = new CTestRelativeNormDispIncr(this->tol, iterations, this->printFlag, this->nType) ; theCopy->theSOE = this->theSOE ; return theCopy ; } void CTestRelativeNormDispIncr::setTolerance(double newTol) { tol = newTol; } int CTestRelativeNormDispIncr::setEquiSolnAlgo(EquiSolnAlgo &theAlgo) { theSOE = theAlgo.getLinearSOEptr(); if (theSOE == 0) { opserr << "WARNING: CTestRelativeNormDispIncr::setEquiSolnAlgo() - no SOE\n"; return -1; } else return 0; } int CTestRelativeNormDispIncr::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) { opserr << "WARNING: CTestRelativeNormDispIncr::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.pNorm(nType); if (currentIter <= maxNumIter) norms(currentIter-1) = norm; // if first pass through .. set norm0 if (currentIter == 1) { norm0 = norm; } // get ratio if (norm0 != 0.0) norm /= norm0; // print the data if required if (printFlag == 1) { opserr << "CTestRelativeNormDispIncr::test() - iteration: " << currentIter; opserr << " current Ratio (|dR|/|dR1|): " << norm << " (max: " << tol << ")\n"; } if (printFlag == 4) { opserr << "CTestRelativeNormDispIncr::test() - iteration: " << currentIter; opserr << " current Ratio (|dR|/|dR1|): " << norm << " (max: " << tol << ")\n"; opserr << "\tNorm deltaX: " << norm << ", Norm deltaR: " << theSOE->getB().pNorm(nType) << endln; opserr << "\tdeltaX: " << x << "\tdeltaR: " << 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 || printFlag == 4) opserr << endln; else if (printFlag == 2 || printFlag == 6) { opserr << "CTestRelativeNormDispIncr::test() - iteration: " << currentIter; opserr << " current Ratio (|dR|/|dR1|): " << norm << " (max: " << 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 || printFlag == 6) && currentIter >= maxNumIter) { opserr << "WARNING: CTestRelativeNormDispIncr::test() - failed to converge but going on -"; opserr << " current Ratio (|dR|/|dR1|): " << norm << " (max: " << tol; opserr << ", Norm deltaR: " << theSOE->getB().pNorm(nType) << ")\n"; return currentIter; } // algo failed to converged after specified number of iterations - return FAILURE -2 else if (currentIter >= maxNumIter) { // failes to converge opserr << "WARNING: CTestRelativeNormDispIncr::test() - failed to converge \n"; opserr << "after: " << currentIter << " iterations\n"; currentIter++; return -2; } // algorithm not yet converged - increment counter and return -1 else { currentIter++; return -1; } } int CTestRelativeNormDispIncr::start(void) { if (theSOE == 0) { opserr << "WARNING: CTestRelativeNormDispIncr::test() - no SOE returning true\n"; return -1; } // set iteration count = 1 norms.Zero(); currentIter = 1; norm0 = 0.0; return 0; } int CTestRelativeNormDispIncr::getNumTests() { return currentIter; } int CTestRelativeNormDispIncr::getMaxNumTests(void) { return maxNumIter; } double CTestRelativeNormDispIncr::getRatioNumToMax(void) { double div = maxNumIter; return currentIter/div; } const Vector& CTestRelativeNormDispIncr::getNorms() { return norms; } int CTestRelativeNormDispIncr::sendSelf(int cTag, Channel &theChannel) { int res = 0; Vector x(4); x(0) = tol; x(1) = maxNumIter; x(2) = printFlag; x(3) = nType; res = theChannel.sendVector(this->getDbTag(), cTag, x); if (res < 0) opserr << "CTestRelativeNormDispIncr::sendSelf() - failed to send data\n"; return res; } int CTestRelativeNormDispIncr::recvSelf(int cTag, Channel &theChannel, FEM_ObjectBroker &theBroker) { int res = 0; Vector x(4); res = theChannel.recvVector(this->getDbTag(), cTag, x); if (res < 0) { opserr << "CTestRelativeNormDispIncr::sendSelf() - failed to send data\n"; tol = 1.0e-8; maxNumIter = 25; printFlag = 0; nType = 2; } else { tol = x(0); maxNumIter = (int) x(1); printFlag = (int) x(2); nType = (int) x(3); norms.resize(maxNumIter); } return res; } Generated on Mon Oct 23 15:04:59 2006 for OpenSees by  1.5.0

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