%PRMEM Size of memory and loops for intermediate results
%
% [LOOPS,ROWS,LAST] = PRMEM(M,K)
%
% Assume that an array of the size [M x K] has to be computed. The
% numbers of LOOPS and ROWS are determined which are needed such that
% ROWS*K < GLOBALPRMEMORY (a global variable that is initialized in this
% routine, if necessary). The final number of rows for the last loop
% is returned in LAST.
%
% EXAMPLES
% [M,K] = size(A);
% [LOOPS,ROWS,LAST] = prmem(M,K);
% if (LOOPS == 1)
% RESULT = < compute the result based on A >
% else
% RESULT = 0;
% for J =1:LOOPS
% if (J == LOOPS), N = LAST; else N = ROWS; end
% NN = (J-1)*ROWS;
% RESULT = RESULT + < compute a partial result based on A(NN+1:NN+N,:) >
% end
% end