Sandbox terminology » History » Revision 2
Revision 1 (Herve Caumont, 2013-06-19 18:05) → Revision 2/5 (Herve Caumont, 2013-06-20 15:04)
h1. Sandbox Terminology and Definitions This page contains the CIOP terminology and definitions h2. Directed Acyclic Graph (DAG) In mathematics and computer science, a Directed Acyclic Graph (DAG), is a directed graph with no directed cycles. DAGs may be used to model several different kinds of structure. By definition a DAG is a directed graph with no path that starts and ends at the same vertex. This notion is in place in G-POD processing flows and used in ESA EO toolboxes such as BEAM and NeST. CIOP uses the DAG to describe the science application +*workflow+*. h2. Job h2. Task To exploit the parallelism offered by the CIOP framework, a +*job+* may process its input in several tasks. In principle, the CIOP framework runs the tasks in parallel within a +*job*+. A +*job+* can then have one or more +*tasks*+. h2. Workflow <pre>bla bla</pre>