Utilities

Routines

ScaLAPACK Utilities

Sets up a processor grid ScaLAPACK_SETUP

Calculates array dimensions for local arrays ScaLAPACK_GETDIM

Reads matrix data from a file ScaLAPACK_READ

Writes the matrix data to a file ScaLAPACK_WRITE

Reads matrix data from an array ScaLAPACK_MAP

Writes the matrix data to a global array ScaLAPACK_UNMAP

Exits ScaLAPACK usage ScaLAPACK_EXIT

Print

Prints error messages ERROR_POST

Prints rank-1 or rank-2 arrays of numbers SHOW

Real rectangular matrix with integer row and column labels WRRRN

Real rectangular matrix with given format and labels WRRRL

Integer rectangular matrix with integer row and column labels WRIRN

Integer rectangular matrix with given format and labels WRIRL

Complex rectangular matrix with row and column labels WRCRN

Complex rectangular matrix with given format and labels WRCRL

Sets or retrieves options for printing a matrix WROPT

Sets or retrieves page width and length PGOPT

Permute

Elements of a vector PERMU

Rows/columns of a matrix PERMA

Sort

Sorts a rank-1 array of real numbers x so the y results are algebraically nondecreasing, y1 ≤ y2 ≤ … yn SORT_REAL

Real vector by algebraic value SVRGN

Real vector by algebraic value and permutations returned SVRGP

Integer vector by algebraic value SVIGN

Integer vector by algebraic value and permutations returned SVIGP

Real vector by absolute value SVRBN

Real vector by absolute value and permutations returned SVRBP

Integer vector by absolute value SVIBN

Integer vector by absolute value and permutations returned SVIGP

Search

Sorted real vector for a number SRCH

Sorted integer vector for a number ISRCH

Sorted character vector for a string SSRCH

Character String Manipulation

Gets the character corresponding to a given ASCII value ACHAR

Get the integer ASCII value for a given character IACHAR

Gets upper case integer ASCII value for a character ICASE

Case-insensitive version comparing two strings IICSR

Case-insensitive version of intrinsic function IIDEX

Converts a character string with digits to an integer CVTSI

Time, Date, and Version

CPU time CPSEC

Time of day TIMDY

Today’s date TDATE

Number of days from January 1, 1900, to the given date NDAYS

Date for the number of days from January 1, 1900 NDYIN

Day of week for given date IDYWK

Version and system information VERML

Random Number Generation

Generates a rank-1 array of random numbers RAND_GEN

Retrieves the current value of the seed RNGET

Initializes a random seed RNSET

Selects the uniform (0,1) generator RNOPT

Initializes the 32-bit Mersenne Twister generator using an array RNIN32

Retrieves the current table used in the 32-bit Mersenne Twister generator RNGE32

Sets the current table used in the 32-bit Mersenne Twister generator RNSE32

Initializes the 32-bit Mersenne Twister generator using an array RNIN64

Retrieves the current table used in the 64-bit Mersenne Twister generator RNGE64

Sets the current table used in the 64-bit Mersenne Twister generator RNSE64

Generates pseudorandom numbers (function form) RNUNF

Generates pseudorandom numbers RNUN

Low Discrepancy Sequences

Shuffled Faure sequence initialization FAURE_INIT

Frees the structure containing information about the Faure sequence FAURE_FREE

Computes a shuffled Faure sequence FAURE_NEXT

Options Manager

Gets and puts type INTEGER options IUMAG

Gets and puts type REAL options UMAG

Gets and puts type DOUBLE PRECISION options DUMAG

Line Printer Graphics

Prints plot of up to 10 sets of points PLOTP

Miscellaneous

Decomposes an integer into its prime factors PRIME

Returns mathematical and physical constants CONST

Converts a quantity to different units CUNIT

Computes square root of a2 + b2 without underflow or overflow HYPOT

Initializes or finalizes MPI. MP_SETUP