NAN and INF checks

Functions
int	magma_c_isnan (magmaFloatComplex x)
int	magma_c_isinf (magmaFloatComplex x)
int	magma_c_isnan_inf (magmaFloatComplex x)
magma_int_t	magma_cnan_inf (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const magmaFloatComplex *A, magma_int_t lda, magma_int_t *cnt_nan, magma_int_t *cnt_inf)
	magma_cnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
magma_int_t	magma_cnan_inf_gpu (magma_uplo_t uplo, magma_int_t m, magma_int_t n, magmaFloatComplex_const_ptr dA, magma_int_t ldda, magma_int_t *cnt_nan, magma_int_t *cnt_inf, magma_queue_t queue)
	magma_cnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
int	magma_d_isnan (double x)
int	magma_d_isinf (double x)
int	magma_d_isnan_inf (double x)
magma_int_t	magma_dnan_inf (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const double *A, magma_int_t lda, magma_int_t *cnt_nan, magma_int_t *cnt_inf)
	magma_dnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
magma_int_t	magma_dnan_inf_gpu (magma_uplo_t uplo, magma_int_t m, magma_int_t n, magmaDouble_const_ptr dA, magma_int_t ldda, magma_int_t *cnt_nan, magma_int_t *cnt_inf, magma_queue_t queue)
	magma_dnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
int	magma_s_isnan (float x)
int	magma_s_isinf (float x)
int	magma_s_isnan_inf (float x)
magma_int_t	magma_snan_inf (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const float *A, magma_int_t lda, magma_int_t *cnt_nan, magma_int_t *cnt_inf)
	magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
magma_int_t	magma_snan_inf_gpu (magma_uplo_t uplo, magma_int_t m, magma_int_t n, magmaFloat_const_ptr dA, magma_int_t ldda, magma_int_t *cnt_nan, magma_int_t *cnt_inf, magma_queue_t queue)
	magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
int	magma_z_isnan (magmaDoubleComplex x)
int	magma_z_isinf (magmaDoubleComplex x)
int	magma_z_isnan_inf (magmaDoubleComplex x)
magma_int_t	magma_znan_inf (magma_uplo_t uplo, magma_int_t m, magma_int_t n, const magmaDoubleComplex *A, magma_int_t lda, magma_int_t *cnt_nan, magma_int_t *cnt_inf)
	magma_znan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...
magma_int_t	magma_znan_inf_gpu (magma_uplo_t uplo, magma_int_t m, magma_int_t n, magmaDoubleComplex_const_ptr dA, magma_int_t ldda, magma_int_t *cnt_nan, magma_int_t *cnt_inf, magma_queue_t queue)
	magma_znan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values. More...

Detailed Description

Function Documentation

int magma_c_isnan

(

magmaFloatComplex

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN.

int magma_c_isinf

(

magmaFloatComplex

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is INF.

int magma_c_isnan_inf

(

magmaFloatComplex

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN or INF.

magma_int_t magma_cnan_inf	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		const magmaFloatComplex *	A,
		magma_int_t	lda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf
	)

magma_cnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	COMPLEX array, dimension (lda,n), on the CPU host. The m-by-n matrix to be printed.
[in]	lda	INTEGER The leading dimension of the array A. lda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

magma_int_t magma_cnan_inf_gpu	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		magmaFloatComplex_const_ptr	dA,
		magma_int_t	ldda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf,
		magma_queue_t	queue
	)

magma_cnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	dA	COMPLEX array, dimension (ldda,n), on the GPU device. The m-by-n matrix to be printed.
[in]	ldda	INTEGER The leading dimension of the array A. ldda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.
[in]	queue	magma_queue_t Queue to execute in.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

int magma_d_isnan

(

double

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN.

int magma_d_isinf

(

double

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is INF.

int magma_d_isnan_inf

(

double

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN or INF.

magma_int_t magma_dnan_inf	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		const double *	A,
		magma_int_t	lda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf
	)

magma_dnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	DOUBLE PRECISION array, dimension (lda,n), on the CPU host. The m-by-n matrix to be printed.
[in]	lda	INTEGER The leading dimension of the array A. lda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

magma_int_t magma_dnan_inf_gpu	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		magmaDouble_const_ptr	dA,
		magma_int_t	ldda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf,
		magma_queue_t	queue
	)

magma_dnan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	dA	DOUBLE PRECISION array, dimension (ldda,n), on the GPU device. The m-by-n matrix to be printed.
[in]	ldda	INTEGER The leading dimension of the array A. ldda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.
[in]	queue	magma_queue_t Queue to execute in.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

int magma_s_isnan

(

float

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN.

int magma_s_isinf

(

float

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is INF.

int magma_s_isnan_inf

(

float

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN or INF.

magma_int_t magma_snan_inf	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		const float *	A,
		magma_int_t	lda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf
	)

magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	REAL array, dimension (lda,n), on the CPU host. The m-by-n matrix to be printed.
[in]	lda	INTEGER The leading dimension of the array A. lda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

magma_int_t magma_snan_inf_gpu	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		magmaFloat_const_ptr	dA,
		magma_int_t	ldda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf,
		magma_queue_t	queue
	)

magma_snan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	dA	REAL array, dimension (ldda,n), on the GPU device. The m-by-n matrix to be printed.
[in]	ldda	INTEGER The leading dimension of the array A. ldda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.
[in]	queue	magma_queue_t Queue to execute in.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

int magma_z_isnan

(

magmaDoubleComplex

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN.

int magma_z_isinf

(

magmaDoubleComplex

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is INF.

int magma_z_isnan_inf

(

magmaDoubleComplex

x

)

Parameters

[in]

x

Scalar to test.

Returns

true if either real(x) or imag(x) is NAN or INF.

magma_int_t magma_znan_inf	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		const magmaDoubleComplex *	A,
		magma_int_t	lda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf
	)

magma_znan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	A	COMPLEX_16 array, dimension (lda,n), on the CPU host. The m-by-n matrix to be printed.
[in]	lda	INTEGER The leading dimension of the array A. lda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.

magma_int_t magma_znan_inf_gpu	(	magma_uplo_t	uplo,
		magma_int_t	m,
		magma_int_t	n,
		magmaDoubleComplex_const_ptr	dA,
		magma_int_t	ldda,
		magma_int_t *	cnt_nan,
		magma_int_t *	cnt_inf,
		magma_queue_t	queue
	)

magma_znan_inf checks a matrix that is located on the CPU host for NAN (not-a-number) and INF (infinity) values.

NAN is created by 0/0 and similar. INF is created by x/0 and similar, where x != 0.

Parameters

[in]	uplo	magma_uplo_t Specifies what part of the matrix A to check. = MagmaUpper: Upper triangular part of A = MagmaLower: Lower triangular part of A = MagmaFull: All of A
[in]	m	INTEGER The number of rows of the matrix A. m >= 0.
[in]	n	INTEGER The number of columns of the matrix A. n >= 0.
[in]	dA	COMPLEX_16 array, dimension (ldda,n), on the GPU device. The m-by-n matrix to be printed.
[in]	ldda	INTEGER The leading dimension of the array A. ldda >= m.
[out]	cnt_nan	INTEGER* If non-NULL, on exit contains the number of NAN values in A.
[out]	cnt_inf	INTEGER* If non-NULL, on exit contains the number of INF values in A.
[in]	queue	magma_queue_t Queue to execute in.

Returns

• >= 0: Returns number of NAN + number of INF values.
• < 0: If it returns -i, the i-th argument had an illegal value, or another error occured, such as memory allocation failed.