Using Coarrays to Parallelize Legacy Fortran Applications: Strategy and Case Study

<div>TAU profiling analysis of function runtimes when using the unoptimized co_sum routines with 1, 2, 4, 8, 16, and 32 images. The <i>.TAU application</i> is the main program wrapped by TAU for profiling, and <i>.TAU application</i> =&gt; refers to functions wrapped by TAU. This notation is also seen in Figures <a href="../fig7/">7</a> and <a href="../fig9/">9</a>.</div>

Scientific Programming

fig6

Figure 6

Figure 6: Using Coarrays to Parallelize Legacy Fortran Applications: Strategy and Case Study 