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authorSadeep Madurange <sadeep@asciimx.com>2026-09-12 09:27:59 +0800
committerSadeep Madurange <sadeep@asciimx.com>2026-09-12 09:27:59 +0800
commit4fbea0b196774e8d2babbaa76c60c7bcc40c997d (patch)
tree3fed09ec9617c3937da1e420cb3764421970aeab /bin/deps-pi5/include/ggml-alloc.h
parent2e73bbf477b9044755a13af46c9c7deb108e5aca (diff)
downloadlex-4fbea0b196774e8d2babbaa76c60c7bcc40c997d.tar.gz
Binaries for pi5.
Diffstat (limited to 'bin/deps-pi5/include/ggml-alloc.h')
-rw-r--r--bin/deps-pi5/include/ggml-alloc.h86
1 files changed, 86 insertions, 0 deletions
diff --git a/bin/deps-pi5/include/ggml-alloc.h b/bin/deps-pi5/include/ggml-alloc.h
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+++ b/bin/deps-pi5/include/ggml-alloc.h
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+#pragma once
+
+#include "ggml.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ggml_backend_buffer_type * ggml_backend_buffer_type_t;
+typedef struct ggml_backend_buffer * ggml_backend_buffer_t;
+typedef struct ggml_backend * ggml_backend_t;
+
+// Tensor allocator
+struct ggml_tallocr {
+ ggml_backend_buffer_t buffer;
+ void * base;
+ size_t alignment;
+ size_t offset;
+};
+
+GGML_API struct ggml_tallocr ggml_tallocr_new(ggml_backend_buffer_t buffer);
+GGML_API enum ggml_status ggml_tallocr_alloc(struct ggml_tallocr * talloc, struct ggml_tensor * tensor);
+
+// Graph allocator
+/*
+ Example usage:
+ ggml_gallocr_t galloc = ggml_gallocr_new(ggml_backend_cpu_buffer_type());
+
+ // optional: create a worst-case graph and reserve the buffers to avoid reallocations
+ ggml_gallocr_reserve(galloc, build_graph(max_batch));
+
+ // allocate the graph
+ struct ggml_cgraph * graph = build_graph(batch);
+ ggml_gallocr_alloc_graph(galloc, graph);
+
+ printf("compute buffer size: %zu bytes\n", ggml_gallocr_get_buffer_size(galloc, 0));
+
+ // evaluate the graph
+ ggml_backend_graph_compute(backend, graph);
+*/
+
+// special tensor flags for use with the graph allocator:
+// ggml_set_input(): all input tensors are allocated at the beginning of the graph in non-overlapping addresses
+// ggml_set_output(): output tensors are never freed and never overwritten
+
+typedef struct ggml_gallocr * ggml_gallocr_t;
+
+GGML_API ggml_gallocr_t ggml_gallocr_new(ggml_backend_buffer_type_t buft);
+GGML_API ggml_gallocr_t ggml_gallocr_new_n(ggml_backend_buffer_type_t * bufts, int n_bufs);
+GGML_API void ggml_gallocr_free(ggml_gallocr_t galloc);
+
+// pre-allocate buffers from a measure graph - does not allocate or modify the graph
+// call with a worst-case graph to avoid buffer reallocations
+// not strictly required for single buffer usage: ggml_gallocr_alloc_graph will reallocate the buffers automatically if needed
+// returns false if the buffer allocation failed
+// ggml_gallocr_resrve_n_size writes the buffer sizes per galloc buffer that would be allocated by ggml_gallocr_reserve_n to sizes
+GGML_API bool ggml_gallocr_reserve(ggml_gallocr_t galloc, struct ggml_cgraph * graph);
+GGML_API void ggml_gallocr_reserve_n_size(
+ ggml_gallocr_t galloc,
+ struct ggml_cgraph * graph,
+ const int * node_buffer_ids,
+ const int * leaf_buffer_ids,
+ size_t * sizes);
+GGML_API bool ggml_gallocr_reserve_n(
+ ggml_gallocr_t galloc,
+ struct ggml_cgraph * graph,
+ const int * node_buffer_ids,
+ const int * leaf_buffer_ids);
+
+// automatic reallocation if the topology changes when using a single buffer
+// returns false if using multiple buffers and a re-allocation is needed (call ggml_gallocr_reserve_n first to set the node buffers)
+GGML_API bool ggml_gallocr_alloc_graph(ggml_gallocr_t galloc, struct ggml_cgraph * graph);
+
+GGML_API size_t ggml_gallocr_get_buffer_size(ggml_gallocr_t galloc, int buffer_id);
+
+// Utils
+// Create a buffer and allocate all the tensors in a ggml_context
+// ggml_backend_alloc_ctx_tensors_from_buft_size returns the size of the buffer that would be allocated by ggml_backend_alloc_ctx_tensors_from_buft
+// ggml_backend_alloc_ctx_tensors_from_buft returns NULL on failure or if all tensors in ctx are already allocated or zero-sized
+GGML_API size_t ggml_backend_alloc_ctx_tensors_from_buft_size(struct ggml_context * ctx, ggml_backend_buffer_type_t buft);
+GGML_API struct ggml_backend_buffer * ggml_backend_alloc_ctx_tensors_from_buft(struct ggml_context * ctx, ggml_backend_buffer_type_t buft);
+GGML_API struct ggml_backend_buffer * ggml_backend_alloc_ctx_tensors(struct ggml_context * ctx, ggml_backend_t backend);
+
+#ifdef __cplusplus
+}
+#endif