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llama : add use_direct_io flag for model loading (#18166)

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* Adding --direct-io flag for model loading

* Fixing read_raw() calls

* Fixing Windows read_raw_at

* Changing type off_t to size_t for windows and Renaming functions

* disable direct io when mmap is explicitly enabled

* Use read_raw_unsafe when upload_backend is available, not functional on some devices with Vulkan and SYCL

* Fallback to std::fread in case O_DIRECT fails due to bad address

* Windows: remove const keywords and unused functions

* Update src/llama-mmap.cpp

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

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Co-authored-by: jtischbein <jtischbein@gmail.com>
Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
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Julius Tischbein 2026-01-08 07:35:30 +01:00 • committed by GitHub
parent 568371a726
commit 2038101bd9
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12 changed files with 118 additions and 53 deletions
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examples/diffusion/diffusion-cli.cpp
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@ -553,6 +553,7 @@ int main(int argc, char ** argv) {
model_params.n_gpu_layers = params.n_gpu_layers;
model_params.devices = params.devices.data();
model_params.use_mmap = params.use_mmap;
model_params.use_direct_io = params.use_direct_io;
model_params.use_mlock = params.use_mlock;
model_params.check_tensors = params.check_tensors;