On Tue, 21 Jul 2009 21:48:45 -0400, Trass3r <[email protected]> wrote:
Robert Jacques schrieb:
Here:
https://jshare.johnshopkins.edu/xythoswfs/webui/_xy-3638242_1-t_5kUrZSWG
It requires D2 and the new phobos and CUDA 2.2. It's only been tested
on XP and Vista and D2.031. If you need a D1 version, let me know and
I'll hunt down an old revision. The ddocs for cuda.api and cuda.tests
has some example usage. The D2 version has some pretty niffty features,
like struct support. Let me know if you need any help.
What about that __thread storage class?
class Device {
protected:
static __thread CUdevice dev; // This thread's GPU
static __thread int gpu_id = 0; // This thread's GPU id
static __thread int rev_major; // The major revision number
static __thread int rev_minor; // The minor revision number
static __thread size_t totalGM; // Total global memory
static __thread string dev_name; // Device name
static __thread CUdevprop prop; // This device's properties
static __thread CUcontext ctx; // This device's context
static __thread isValid = false; // Is the device alive
Does this combination of static and __thread work?
By the way, are static class members treated as "classic global data"?
D 2.030:
classic global storage now defaults to TLS (Thread Local Storage).
D 2.013:
Added __thread storage class for thread local storage. This is for
testing purposes only to check out the machinery in the back end. The
front end design of this will change.
Well, I could probably eliminate __thread now, but it doesn't seem to be
doing any harm. Device is in flux right now, as it's basically
transitioning from a class with data to a struct containing a bunch of
static functions. I don't have a multi-GPU setup (sadly) so I haven't
played around with any of the multi-gpu/context stuff in CUDA.
