Commit Graph

2 Commits

Author SHA1 Message Date
Dustin
5770c7034b
Guard against None offload_stream in prefetch_queue_pop
cast_modules_with_vbar can return None when all modules in a
prefetched block are already resident. Mirrors the existing
None check in sync_stream.
2026-05-04 02:17:17 -04:00
rattus
783782d5d7
Implement block prefetch + Lora Async load + and adopt in LTX (Speedup!) (CORE-111) (#13618)
* mm: Use Aimdo raw allocator for cast buffers

pytorch manages allocation of growing buffers on streams poorly. Pyt
has no windows support for the expandable segments allocator (which is
the right tool for this job), while also segmenting the memory by
stream such that it can be generally re-used. So kick the problem to
aimdo which can just grow a virtual region thats freed per stream.

* plan

* ops: move cpu handler up to the caller

* ops: split up prefetch from weight prep block prefetching API

Split up the casting and weight formating/lora stuff in prep for
arbitrary prefetch support.

* ops: implement block prefetching API

allow a model to construct a prefetch list and operate it for increased
async offload.

* ltxv2: Implement block prefetching

* Implement lora async offload

Implement async offload of loras.
2026-05-02 19:23:24 -04:00