PLAPACK calls

The PLAPACK equivalent local and global level-3 BLAS calls are given by place HR here

place HR here Parameters SIDE, UPLO, TRANSA, and DIAG have been replaced by integer parameters side, uplo, transa, and diag, which can take on the values indicated in Table . All other parameters are now passed as part of linear algebra objects alpha, a, and b.

Local call:

When a node calls PLA_Local_trmm, the operation is equivalent to extracting the local information (datatype, dimensions, and pointers to the buffers) and locally performing the triangular matrix-matrix multiply. Notice that the local portion of a must be square and stored in the indicated portion of the buffer. The local dimensions of alpha must be , but it can be of any object type. The local dimensions of a and b must be such that the operation is well-defined. All objects must have the same datatype. Notice: no communication is performed as part of this call. Thus, all information must be locally available.

Global call:

All nodes must simultaneously call PLA_Trmm, which performs the BLAS call on the distributed objects. Parameters side, uplo, trans, and diag still have the same meaning. Parameter alpha must now be a multiscalar. Parameters a and b must be of object type matrix. The global dimensions of the different objects must be such that the operation is well-defined.