PLASMA
2.8.0
PLASMA - Parallel Linear Algebra for Scalable Multi-core Architectures
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int CORE_zttmqr | ( | PLASMA_enum | side, |
PLASMA_enum | trans, | ||
int | M1, | ||
int | N1, | ||
int | M2, | ||
int | N2, | ||
int | K, | ||
int | IB, | ||
PLASMA_Complex64_t * | A1, | ||
int | LDA1, | ||
PLASMA_Complex64_t * | A2, | ||
int | LDA2, | ||
const PLASMA_Complex64_t * | V, | ||
int | LDV, | ||
const PLASMA_Complex64_t * | T, | ||
int | LDT, | ||
PLASMA_Complex64_t * | WORK, | ||
int | LDWORK | ||
) |
CORE_zttmqr overwrites the general complex M1-by-N1 tile A1 and M2-by-N2 tile A2 (N1 == N2) with
SIDE = 'L' SIDE = 'R'
TRANS = 'N': Q * | A1 | | A1 | * Q | A2 | | A2 |
TRANS = 'C': Q**H * | A1 | | A1 | * Q**H | A2 | | A2 |
where Q is a complex unitary matrix defined as the product of k elementary reflectors
Q = H(1) H(2) . . . H(k)
as returned by CORE_zttqrt.
[in] | side |
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[in] | trans |
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[in] | M1 | The number of rows of the tile A1. M1 >= 0. |
[in] | N1 | The number of columns of the tile A1. N1 >= 0. |
[in] | M2 | The number of rows of the tile A2. M2 >= 0. |
[in] | N2 | The number of columns of the tile A2. N2 >= 0. |
[in] | K | The number of elementary reflectors whose product defines the matrix Q. |
[in] | IB | The inner-blocking size. IB >= 0. |
[in,out] | A1 | On entry, the M1-by-N1 tile A1. On exit, A1 is overwritten by the application of Q. |
[in] | LDA1 | The leading dimension of the array A1. LDA1 >= max(1,M1). |
[in,out] | A2 | On entry, the M2-by-N2 tile A2. On exit, A2 is overwritten by the application of Q. |
[in] | LDA2 | The leading dimension of the tile A2. LDA2 >= max(1,M2). |
[in] | V | The i-th row must contain the vector which defines the elementary reflector H(i), for i = 1,2,...,k, as returned by CORE_ZTTQRT in the first k rows of its array argument V. |
[in] | LDV | The leading dimension of the array V. LDV >= max(1,K). |
[in] | T | The IB-by-N1 triangular factor T of the block reflector. T is upper triangular by block (economic storage); The rest of the array is not referenced. |
[in] | LDT | The leading dimension of the array T. LDT >= IB. |
[out] | WORK | Workspace array of size LDWORK-by-N1. |
[in] | LDWORK | The dimension of the array WORK. LDWORK >= max(1,IB). |
PLASMA_SUCCESS | successful exit |
<0 | if -i, the i-th argument had an illegal value |