Chapter 12: Utilities

IMSL C Math Library

Functions

Set Output Files

Set output files, output_file

Get library version and license number, version

Time and Date

CPU time used, ctime

Date to days since epoch, date_to_days

Days since epoch to date, days_to_date

Error Handling

Error message options, error_options

Gets error type, error_type

Gets the text of error message, error_message

Gets error code, error_code

Initializes error handling system, initialize_error_handler

Stops the current algorithm and returns to the
calling program, set_user_fcn_return_flag

C Runtime Library

Initializes the library, initialize

Frees memory, free

Opens a file, fopen

Closes a file, fclose

OpenMP

OpenMP options, omp_options

Constants

Natural and mathematical constants, constant

Integer machine constants, machine (integer)

Float machine constants, machine (float)

Sorting

Sort float vector, sort

Sort integer vector, sort (integer)

Computing Vector Norms

Compute various norms, vector_norm

Compute various norms, vector_norm (complex)

Linear Algebra Support

Vector-Vector, Matrix-Vector, and Matrix-Matrix-Multiplication

Real Matrix, mat_mul_rect

Complex matrix, mat_mul_rect (complex)

Real band matrix, mat_mul_rect_band

Complex band matrix, mat_mul_rect_band (complex)

Real coordinate matrix, mat_mul_rect_coordinate

Complex coordinate matrix, mat_mul_rect_coordinate (complex)

Vector-Vector, Matrix-Vector, and Matrix-Matrix-Addition

Real band matrix, mat_add_band

Complex band matrix, mat_add_band (complex)

Real coordinate matrix, mat_add_coordinate

Complex coordinate matrix, mat_add_coordinate (complex)

Matrix Norm

Real matrix, matrix_norm

Real band matrix, matrix_norm_band

Real coordinate matrix, matrix_norm_coordinate

Test Matrices of Class

Real matrix, generate_test_band

Complex matrix, generate_test_band (complex)

Real matrix, generate_test_coordinate

Complex, generate_test_coordinate (complex)

GPU Support

Programming Notes for Using NVIDIA® CUDA™ Toolkit,

Gets the switchover value, cuda_get

Sets the switchover value, cuda_set

Frees NVIDIA memory, cuda_free