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Namespaces | Functions
PasoUtil.cpp File Reference
#include "PasoUtil.h"

Namespaces

namespace  paso
namespace  paso::util

Functions

int paso::util::comparIndex (const void *index1, const void *index2)
 this int-comparison function is used by qsort/bsearch in various places
bool paso::util::isAny (dim_t N, index_t *array, index_t value)
 returns true if array contains value
dim_t paso::util::numPositives (dim_t N, const double *x)
 returns the number of positive values in x
index_t paso::util::iMax (dim_t N, const index_t *array)
 returns the maximum value in integer array
index_t paso::util::cumsum (dim_t N, index_t *array)
 calculates the cumulative sum in array and returns the total sum
index_t paso::util::cumsum_maskedTrue (dim_t N, index_t *array, int *mask)
index_t paso::util::cumsum_maskedFalse (dim_t N, index_t *array, int *mask)
index_t paso::util::arg_max (dim_t N, dim_t *lambda)
 returns the index to the largest entry in lambda
void paso::util::zeroes (dim_t N, double *x)
 fills array x with zeroes
void paso::util::update (dim_t n, double a, double *x, double b, const double *y)
void paso::util::linearCombination (dim_t n, double *z, double a, const double *x, double b, const double *y)
double paso::util::innerProduct (dim_t N, const double *x, const double *y, Esys_MPIInfo *mpiinfo)
 returns the inner product of global arrays x and y
double paso::util::lsup (dim_t N, const double *x, Esys_MPIInfo *mpiinfo)
 returns the global Lsup of x
double paso::util::l2 (dim_t N, const double *x, Esys_MPIInfo *mpiinfo)
 returns the global L2 norm of x
void paso::util::applyGivensRotations (dim_t n, double *v, const double *c, const double *s)