From b320b9c5d1f62650dbe3205ce1e887cd4e02f338 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Tue, 22 Mar 2016 09:22:14 -0500
Subject: [PATCH] Add atomic ops to tutorial
---
doc/tutorial.rst | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/doc/tutorial.rst b/doc/tutorial.rst
index 4275474d9..1bf9e39a7 100644
--- a/doc/tutorial.rst
+++ b/doc/tutorial.rst
@@ -1063,6 +1063,24 @@ Conditionals
Snippets of C
~~~~~~~~~~~~~
+Atomic operations
+~~~~~~~~~~~~~~~~~
+
+Loopy supports atomic operations. To use them, both the data on which the
+atomic operations work as well as the operations themselves must be
+suitably tagged, as in the following example::
+
+
+ knl = lp.make_kernel(
+ "{ [i]: 0<=i<n }",
+ "out[i%20] = out[i%20] + 2*a[i] {atomic}",
+ [
+ lp.GlobalArg("out", dtype, shape=lp.auto, for_atomic=True),
+ lp.GlobalArg("a", dtype, shape=lp.auto),
+ "..."
+ ],
+ assumptions="n>0")
+
.. }}}
Common Problems
--
GitLab