From 4aa9e71e99f2d6b762fe3f55cd016027aaa30170 Mon Sep 17 00:00:00 2001
From: Andreas Kloeckner <inform@tiker.net>
Date: Tue, 9 Aug 2011 00:55:00 +0200
Subject: [PATCH] Prohibit asking about lmem bank counts on CPUs.
---
pyopencl/characterize.py | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/pyopencl/characterize.py b/pyopencl/characterize.py
index a03b8e1e..b0a98ad0 100644
--- a/pyopencl/characterize.py
+++ b/pyopencl/characterize.py
@@ -147,13 +147,14 @@ def local_memory_bank_count(dev):
CLCharacterizationWarning)
return 16
elif dev.type == cl.device_type.CPU:
- return dev.local_mem_size / local_memory_access_granularity(dev)
- else:
- from warnings import warn
- warn("wildly guessing conflicting local access size on '%s'"
- % dev,
- CLCharacterizationWarning)
- return 16
+ if dev.local_mem_type == cl.device_local_mem_type.GLOBAL:
+ raise RuntimeError("asking for a bank count is meaningless for cache-based lmem")
+
+ from warnings import warn
+ warn("wildly guessing conflicting local access size on '%s'"
+ % dev,
+ CLCharacterizationWarning)
+ return 16
--
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