Track cudaHostAlloc and hipHostMalloc

[fpruvost]

Hi,
In our application our data blocks allocated on the main RAM (host) are pinned when using GPUs, and we use the functions cudaHostAlloc/cudaFreeHost (nvidia gpus) or hipHostMalloc/hipHostFree (amd gpus).
Can malt track these functions ?
Thanks

[svalat]

That's an interesting idea to add thanks.

For now, not possible in the current version.

A way could be to consider them as custom allocator playing with --wrap of malt but in practice they don't have the same signature (extra args).

I would say if we want to add this support we can :

1. Capture & track them and also add a counter specific + charts to track GPU memory
2. Track pinned memory

For point 2), that's far more work and I think it is not really trivial.

1. should be in principle quite easy to add even need to think a bit the right way to expose in the GUI to be usefull.