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[gomp-nvptx,2/5] Revert "nvptx plugin: bump heap size to 1GB"

Message ID 1455561852-9237-3-git-send-email-amonakov@ispras.ru
State New
Headers show

Commit Message

Alexander Monakov Feb. 15, 2016, 6:44 p.m. UTC 
This reverts commit 7d36b841341cde96f6cf89c5232916062da3fe4c.

The change was not well motivated: soft stacks would not fit in the default
8 MB heap only with multiple teams.  With the transition to host-allocated
soft stacks, libgomp uses the device heap only for relatively small
allocations.

	Revert
	2015-12-09  Alexander Monakov  <amonakov@ispras.ru>

	* plugin/plugin-nvptx.c (nvptx_open_device): Adjust heap size.
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Patch

diff --git a/libgomp/plugin/plugin-nvptx.c b/libgomp/plugin/plugin-nvptx.c
index 79fd253..cb6a3ac 100644
--- a/libgomp/plugin/plugin-nvptx.c
+++ b/libgomp/plugin/plugin-nvptx.c
@@ -694,10 +694,6 @@  nvptx_open_device (int n)
 
   init_streams_for_device (ptx_dev, async_engines);
 
-  r = cuCtxSetLimit (CU_LIMIT_MALLOC_HEAP_SIZE, 1<<30);
-  if (r != CUDA_SUCCESS)
-    GOMP_PLUGIN_fatal ("cuCtxSetLimit error: %s", cuda_error (r));
-
   return ptx_dev;
 }