From 73de5f16efc696cf0c88beec086eb9a4df9098dd Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Thu, 24 Oct 2019 21:52:45 +0200
Subject: Extract offset helper into target and layout specific classes

---
 boltzgen/kernel/target/cl.py | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 boltzgen/kernel/target/cl.py

(limited to 'boltzgen/kernel/target/cl.py')

diff --git a/boltzgen/kernel/target/cl.py b/boltzgen/kernel/target/cl.py
new file mode 100644
index 0000000..a2fc819
--- /dev/null
+++ b/boltzgen/kernel/target/cl.py
@@ -0,0 +1,19 @@
+class SOA:
+    def __init__(self, descriptor, geometry):
+        self.descriptor = descriptor
+        self.geometry = geometry
+
+    def gid(self):
+        return {
+            2: 'get_global_id(1)*%d + get_global_id(0)' % self.geometry.size_x,
+            3: 'get_global_id(2)*%d + get_global_id(1)*%d + get_global_id(0)' % (self.geometry.size_x*self.geometry.size_y, self.geometry.size_x)
+        }.get(self.descriptor.d)
+
+    def pop_offset(self, i):
+        return i * self.geometry.volume
+
+    def neighbor_offset(self, c_i):
+        return {
+            2: lambda:                                                    c_i[1]*self.geometry.size_x + c_i[0],
+            3: lambda: c_i[2]*self.geometry.size_x*self.geometry.size_y + c_i[1]*self.geometry.size_x + c_i[0]
+        }.get(self.descriptor.d)()
-- 
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