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--- single-openmp [June 11, 2026 at 11:08] – Ivan Janevski
+++ single-openmp [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
-# Single (OpenMP)
-**Single** is an OpenMP directive that runs the enclosed block on exactly one thread, whichever arrives first.
-All other threads skip the block and wait at an implicit barrier at the end, so the whole team is synchronised before continuing. It is commonly used for initialisation, I/O, and task generation.
-```c
-#pragma omp parallel
-{
-    #pragma omp single
-    initialise();    // one thread runs this; others wait at the closing brace
-    process();       // all threads continue here once initialise() is done
-}
-```
-The `nowait` clause removes the implicit barrier (`#pragma omp single nowait`), but is only safe when the rest of the parallel block does not depend on what the single block produced.