Translating multiarray creation

The pre-translator ensures that multiarray creation only appears on the right-hand-side of a top-level assignment, so we only need to consider that case. The scheme for the translation in non-HPspmd code is illustrated in Figure A.23.

In this case we must be creating a sequential multiarray and all extent expressions must be integers. The macro DEFINE_DIMENSION is defined as follows:

$$\begin{minipage}[t]{\linewidth}\begin{tabbing} $\mbox{\it DE... ...verb$ $$s$\verb$ *= $$e_r$\verb$ ;$ \end{tabbing}\end{minipage}$$

As each dimension is processed, the memory stride for the next dimension is computed by multiplying the variable $s$ by the extent of the current dimension. The final value of $s$ is the total number of locally held elements.

Figure A.24: Translation of multiarray creation with on clause.

SOURCE:

$$\begin{minipage}[t]{\linewidth}\begin{tabbing} $a$ \verb$ =... ...x{\it bras}$\verb$ on $$p$\verb$ ;$ \end{tabbing}\end{minipage}$$

TRANSLATION:

$$\begin{minipage}[t]{\linewidth}\begin{tabbing} \verb$int $$s... ...Base($$p$\verb$, $$b$\verb$) ;$ \\ \end{tabbing}\end{minipage}$$

where:

$$\begin{array}{l} \mbox{$T$ is a Java type,} \\ \mbox{$R$ ... ...ro {\it DEFINE\_DIMENSION} is defined in the text.} \end{array}$$