Differences

This shows you the differences between two versions of the page.

--- language:langs:dflow [2023/04/09 19:46]
rajit [Clusters and Ordering]
+++ language:langs:dflow [2024/01/07 11:24] (current)
rajit [Clusters and Ordering]
@@ Line 213: / Line 213: @@
 dataflow {
   order {
-     c < e
+     c < e    // c must be produced before e is available
    }
    a + b -> c;
    d + e -> out
+ }
+</code>
+In general, the order block contains a semi-colon separated list of directives. Each directive is a list of comma-separated channels followed by ''<'' followed by a second comma-separated list of channels. The directive means that all the channels in the first group must produce outputs before any of the channels in the second group can receive inputs.
+====== Syntactic replication ======
+The dataflow sub-language has support for syntactic replication for splits, merges, mixers, and arbiters. For a split, the output side can use syntactic replication; for the others, the input side can use syntactic replication.
+For example, the following syntax is legal (assuming everything is of the right type):
+<code act>
+dataflow {
+  {ctrl} l -> (, i : 8 : out[i])
+ }
+</code>