Description Usage Arguments Value See Also
This function performs the symmetric rank- 2k update C = a(op ( A )op ( B ) T + op ( B )op ( A )T) + b C by using CUDA cublas function cublasDsyr2k
1 |
fillmode |
indicates if matrix A lower or upper part is stored, the other part is not referenced and is inferred from the stored elements. if fillmode == 1 then the triagular banded matrix A is stored column by column, with the main diagonal of the matrix stored in row 1, the first subdiagonal in row 2 (starting at first position), the second subdiagonal in row 3 (starting at first position), etc. if fillmode == 2 then the triangular banded matrix A is stored column by column, with the main diagonal of the matrix stored in row k+1, the first superdiagonal in row k (starting at second position), the second superdiagonal in row k-1 (starting at third position), etc. |
trans |
matrix A and B transpose operator, 1 (non-transpose), 2 (transpose), 3 (conjugate transpose); default at 1 (non-transpose) |
alpha |
scale factor a ; default 1 |
A |
input matrix; list of R external GPU pointer and dimension |
B |
input matrix; list of R external GPU pointer and dimension |
beta |
scale factor b; default 0 |
C |
input/output matrix; list of R external GPU pointer and dimension |
updated matrix C, a list consisting of
ptr: GPU pointer
m: matrix C's number of rows
n: matrix C's number of columns
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