gpt4all/gpt4all-backend/llmodel.h

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#ifndef LLMODEL_H
#define LLMODEL_H
#include <string>
#include <functional>
#include <vector>
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#include <cstdint>
class LLModel {
public:
explicit LLModel() {}
virtual ~LLModel() {}
virtual bool loadModel(const std::string &modelPath) = 0;
virtual bool isModelLoaded() const = 0;
virtual size_t stateSize() const { return 0; }
virtual size_t saveState(uint8_t *dest) const { return 0; }
virtual size_t restoreState(const uint8_t *src) { return 0; }
struct PromptContext {
std::vector<float> logits; // logits of current context
std::vector<int32_t> tokens; // current tokens in the context window
int32_t n_past = 0; // number of tokens in past conversation
int32_t n_ctx = 0; // number of tokens possible in context window
int32_t n_predict = 200;
int32_t top_k = 40;
float top_p = 0.9f;
float temp = 0.9f;
int32_t n_batch = 9;
float repeat_penalty = 1.10f;
int32_t repeat_last_n = 64; // last n tokens to penalize
float contextErase = 0.75f; // percent of context to erase if we exceed the context
// window
};
virtual void prompt(const std::string &prompt,
std::function<bool(int32_t)> promptCallback,
std::function<bool(int32_t, const std::string&)> responseCallback,
std::function<bool(bool)> recalculateCallback,
PromptContext &ctx) = 0;
virtual void setThreadCount(int32_t n_threads) {}
virtual int32_t threadCount() { return 1; }
protected:
virtual void recalculateContext(PromptContext &promptCtx,
std::function<bool(bool)> recalculate) = 0;
};
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#endif // LLMODEL_H