__cudaMutexOperation cudart.dll

when i execute the program in debug mode(visual studio 2008),
it displays that The procedure entry point of __cudaMutexOperation could not locate in cudart.dll
it is very strange,
but in release mode it has no problem

what the reason?

the dll version is wrong:)

Just out of curiosity, does anyone know what this api call does? I do not see it documented anywhere. __cudaSynchronizeThreads() is undocumented as well I believe.

maybe it’s just useful in the debug mode :rolleyes: