DarthAffe/stable-diffusion.cpp
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refactor: align PixArt weights with upstream layout (#2061)

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leejet authored and GitHub committed 2026-09-26 02:03:05 +08:00
1 parent 19bbbca1c7
commit 2f886889e6
8 files changed
+273 -96
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src/model_manager_files.cpp
+26 -11
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@@ -15,6 +15,26 @@ static bool same_tensor_source(const TensorStorage& a, const TensorStorage& b) {
a.int8_convrot_group_size == b.int8_convrot_group_size;
}
std::vector<TensorStorage> ModelManager::find_tensor_sources(const TensorState& state, const String2TensorStorage& sources) {
auto first = sources.find(state.name);
if (first == sources.end()) {
return {};
}
std::vector<TensorStorage> result{first->second};
if (state.component == ModelComponent::LoRA ||
std::equal(first->second.ne, first->second.ne + GGML_MAX_DIMS, state.tensor->ne)) {
return result;
}
for (size_t i = 1;; ++i) {
auto part = sources.find(state.name + "." + std::to_string(i));
if (part == sources.end()) {
break;
}
result.push_back(part->second);
}
return result;
}
void ModelManager::invalidate_sources(const std::unordered_set<TensorState*>& states) {
auto affected = states;
for (const auto& block : params_storage_blocks_) {
@@ -76,20 +96,16 @@ bool ModelManager::set_loader(ModelLoader loader) {
}
std::unordered_set<TensorState*> changed;
for (const auto& state : tensor_states_) {
const auto& sources = sources_for(*state);
auto source = sources.find(state->name);
const bool found = source != sources.end();
if (found != state->has_source || (found && !same_tensor_source(state->source, source->second)) ||
const auto sources = find_tensor_sources(*state, sources_for(*state));
if (sources.size() != state->sources.size() ||
!std::equal(sources.begin(), sources.end(), state->sources.begin(), same_tensor_source) ||
(lora_changed && state->component != ModelComponent::LoRA && state->applied_lora_epoch != UINT64_MAX)) {
changed.insert(state.get());
}
}
invalidate_sources(changed);
for (auto* state : changed) {
const auto& sources = sources_for(*state);
auto source = sources.find(state->name);
state->has_source = source != sources.end();
state->source = state->has_source ? source->second : TensorStorage{};
state->sources = find_tensor_sources(*state, sources_for(*state));
}
if (lora_changed) {
++current_lora_epoch_;
@@ -134,9 +150,8 @@ ModelLoader::FileVersions ModelManager::source_versions(const std::set<ModelComp
versions[state->source_file] = loader.file_revision(state->source_file);
continue;
}
auto source = sources.find(state->name);
if (source != sources.end()) {
versions[source->second.file_id] = source->second.file_revision;
for (const auto& source : find_tensor_sources(*state, sources)) {
versions[source.file_id] = source.file_revision;
}
}
return versions;