Fix unintended error on V100.

joaander · joaander · commit af48ec193290 · 2025-07-18T10:23:36.000-04:00
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
@@ -9,7 +9,7 @@ Change Log
 
 *Fixed*
 
-* Ensure that GPU devices have full unified memory capabilities
+* Ensure that GPU devices have concurrent unified memory capabilities
   (`#2099 <https://github.com/glotzerlab/hoomd-blue/pull/2099>`__).
 * Fix segfault when attaching nlists with meshes
   (`#2089 <https://github.com/glotzerlab/hoomd-blue/pull/2089>`__).
diff --git a/hoomd/ExecutionConfiguration.cc b/hoomd/ExecutionConfiguration.cc
@@ -389,7 +389,7 @@ void ExecutionConfiguration::scanGPUs()
 #ifdef __HIP_PLATFORM_NVCC__
         int supports_managed_memory = 0;
         cudaError_t cuda_error = cudaDeviceGetAttribute(&supports_managed_memory,
-                                                        cudaDevAttrPageableMemoryAccess,
+                                                        cudaDevAttrConcurrentManagedAccess,
                                                         dev);
         if (cuda_error != cudaSuccess)
             {

Original file line number	Diff line number	Diff line change
`@@ -389,7 +389,7 @@ void ExecutionConfiguration::scanGPUs()`
`389`	`389`	`#ifdef __HIP_PLATFORM_NVCC__`
`390`	`390`	`int supports_managed_memory = 0;`
`391`	`391`	`cudaError_t cuda_error = cudaDeviceGetAttribute(&supports_managed_memory,`
`392`		`- cudaDevAttrPageableMemoryAccess,`
	`392`	`+ cudaDevAttrConcurrentManagedAccess,`
`393`	`393`	`dev);`
`394`	`394`	`if (cuda_error != cudaSuccess)`
`395`	`395`	`{`