Tutorial slides (PDF) - Clemson University
Tutorial slides (PDF) - Clemson University
Tutorial slides (PDF) - Clemson University
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Python Interface to BLACS and ScaLAPACK<br />
Important to understand notion of array descriptor:<br />
Distinguish between global and local array. Create local<br />
array in parallel.<br />
int desc[9];<br />
desc[0] = BLOCK_CYCLIC_2D; % MACRO = 1<br />
desc[1] = ConTxt; % must equal -1 if inactive<br />
desc[2] = m; % number of rows in global array<br />
desc[3] = n; % number of columns in global array<br />
desc[4] = mb; % row blocksize<br />
desc[5] = nb; % column blocksize<br />
desc[6] = irsrc; % starting row<br />
desc[7] = icsrc; % starting column<br />
desc[8] = MAX(0, lld); % leading dimension of local array
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