18 #ifndef __PASO_UTIL_H__ 19 #define __PASO_UTIL_H__ 46 int comparIndex(
const void* index1,
const void* index2);
81 void update(
dim_t N,
double a,
double* x,
double b,
const double* y);
99 inline void AXPY(
dim_t N,
double* x,
double a,
const double* y)
107 return (a>=0 && b>=0) || (a<=0 && b<=0);
113 #endif // __PASO_UTIL_H__
index_t arg_max(dim_t n, dim_t *lambda)
returns the index to the largest entry in lambda
Definition: PasoUtil.cpp:275
bool samesign(double a, double b)
returns true if both arguments have the same sign, false otherwise
Definition: PasoUtil.h:105
bool isAny(dim_t N, index_t *array, index_t value)
returns true if array contains value
Definition: PasoUtil.cpp:39
index_t cumsum(dim_t N, index_t *array)
calculates the cumulative sum in array and returns the total sum
Definition: PasoUtil.cpp:105
double innerProduct(const dim_t n, const double *x, const double *y, esysUtils::JMPI &mpiinfo)
returns the inner product of global arrays x and y
Definition: PasoUtil.cpp:418
double lsup(dim_t n, const double *x, const esysUtils::JMPI &mpiinfo)
returns the global Lsup of x
Definition: PasoUtil.cpp:452
dim_t numPositives(dim_t N, const double *x)
returns the number of positive values in x
Definition: PasoUtil.cpp:63
int comparIndex(const void *index1, const void *index2)
this int-comparison function is used by qsort/bsearch in various places
Definition: PasoUtil.cpp:34
void AXPY(dim_t N, double *x, double a, const double *y)
x = x+a*y
Definition: PasoUtil.h:99
void copy(dim_t N, double *out, const double *in)
out = in
Definition: PasoUtil.h:87
double l2(dim_t n, const double *x, const esysUtils::JMPI &mpiinfo)
returns the global L2 norm of x
Definition: PasoUtil.cpp:484
void scale(dim_t N, double *x, double a)
x = a*x
Definition: PasoUtil.h:93
void update(dim_t n, double a, double *x, double b, const double *y)
Definition: PasoUtil.cpp:337
void zeroes(dim_t n, double *x)
fills array x with zeroes
Definition: PasoUtil.cpp:321
static dim_t N
Definition: SparseMatrix_saveHB.cpp:37
index_t cumsum_maskedFalse(dim_t N, index_t *array, int *mask)
Definition: PasoUtil.cpp:214
void linearCombination(dim_t n, double *z, double a, const double *x, double b, const double *y)
Definition: PasoUtil.cpp:382
int index_t
Definition: types.h:24
index_t cumsum_maskedTrue(dim_t N, index_t *array, int *mask)
Definition: PasoUtil.cpp:153
index_t dim_t
Definition: types.h:27
index_t iMax(dim_t N, const index_t *array)
returns the maximum value in integer array
Definition: PasoUtil.cpp:84
boost::shared_ptr< JMPI_ > JMPI
Definition: Esys_MPI.h:79
void applyGivensRotations(dim_t n, double *v, const double *c, const double *s)
Definition: PasoUtil.cpp:515