Request to add a requested resource to the DTD API

[DSMishler]

Description

My project for the past few months has been to get an idea of GEMM algorithms through ParSEC. The DTD interface has been helpful with this endeavor, but the addition of a few more features would be the most efficient way to practically extend the interface while also giving the needed control to my code to better utilize ParSEC.

Describe the solution you'd like

To my knowledge, there is not yet a way in ParSEC to instantiate a task and guarantee which computing resource will execute that task. This makes experimenting difficult, particularly with algorithms whose purpose is to maximize cache locality. If the DTD API could be modified to give such control to the programmer, much more concise testing and presentation of results would be possible.