3 Commits

Author SHA1 Message Date
talksik 6154a4851e experiment with predictive actions prompt 2025-07-12 13:36:51 -07:00
talksik 7311c710d6 docs: improve getting started process 2025-07-12 13:28:52 -07:00
talksik f319cce82a integrate llama.cpp for local inference 2025-07-12 12:22:05 -07:00
6 changed files with 233 additions and 0 deletions
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[submodule "stream/thirdparty/llama.cpp"]
path = stream/thirdparty/llama.cpp
url = https://github.com/ggml-org/llama.cpp
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.cache
stream_app
*.gguf
compile_commands.json
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CC = gcc
CFLAGS = -Wall -g -I./thirdparty/llama.cpp/include -I./thirdparty/llama.cpp/ggml/include
TARGET = stream_app
SRC = main.c
LIBS = -L./thirdparty/llama.cpp/build/bin -lllama -lggml -lggml-base
$(TARGET): $(SRC)
$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LIBS)
clean:
rm -f *.o $(TARGET)
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# flowy.stream
This is a proof of concept of a showing widgets within a conversation based on intent.
## Todo
- [x] Integrate llama.cpp with local inference. This will set us up for building many parts of experience.
- [ ] Disect what llama is doing and what the Phi model is doing.
- [ ] Create conversational loop with chat and running context.
- [ ] Generate & render different types of blocks: list, email, doc, etc.
- [ ] Try different models with hugging face
- [ ] Render TUI elements based on commands
## Dependencies
### llama.cpp
```sh
#model weights
wget https://huggingface.co/microsoft/Phi-3-mini-4k-instruct-gguf/resolve/main/Phi-3-mini-4k-instruct-q4.gguf
```
```sh
cd ./thirdparty/llama.cpp
rm -rf build
mkdir -p build
cmake -S. -Bbuild -DLLAMA_CURL=OFF
cmake --build build
```
The libraries should be in `./thirdparty/llama.cpp/build/bin`.
NOTE: you may have to disable curl as a flag when configuring llama.cpp via cmake.
## Getting started
```sh
make
LD_LIBRARY_PATH=./thirdparty/llama.cpp/build/bin/ ./stream_app
```
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#include "thirdparty/llama.cpp/ggml/include/ggml-backend.h"
#include <llama.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
typedef enum {
Unspecified,
Question,
Math,
Code,
Email,
Doc,
WebSearch,
} IntentType;
int main(int argc, char *argv[]) {
printf("Hello world\n");
char user_input[500];
printf("What's up, what can I help with?\n");
fgets(user_input, sizeof(user_input), stdin);
char prompt[1000];
snprintf(prompt, sizeof(prompt), "<|system|>You are a helpful assistant. Your goal is to take in what the user is doing and return 3 predictive actions/3 suggestions based on what the user is trying to do: e.g. change page title when in google sheets, or calculate sum, create chart.<|end|>\n<|user|>%s<|end|>\n<|assistant|>", user_input);
// number of layers to offload to the GPU
int ngl = 99;
// number of tokens to predict
int n_predict = 1000;
// load dynamic backends
ggml_backend_load_all();
// initialize the model
struct llama_model_params model_params = llama_model_default_params();
model_params.n_gpu_layers = ngl;
struct llama_model *model = llama_model_load_from_file(
"Phi-3-mini-4k-instruct-q4.gguf", model_params);
if (model == NULL) {
fprintf(stderr, "%s: error: unable to load model\n", __func__);
return 1;
}
const struct llama_vocab *vocab = llama_model_get_vocab(model);
// tokenize the prompt
// find the number of tokens in the prompt
const int n_prompt =
-llama_tokenize(vocab, prompt, strlen(prompt), NULL, 0, true, true);
// allocate space for the tokens and tokenize the prompt
llama_token *prompt_tokens = malloc(n_prompt * sizeof(llama_token));
if (prompt_tokens == NULL) {
fprintf(stderr, "%s: error: failed to allocate memory for prompt tokens\n",
__func__);
return 1;
}
if (llama_tokenize(vocab, prompt, strlen(prompt), prompt_tokens, n_prompt,
true, true) < 0) {
fprintf(stderr, "%s: error: failed to tokenize the prompt\n", __func__);
return 1;
}
// initialize the context
struct llama_context_params ctx_params = llama_context_default_params();
// n_ctx is the context size
ctx_params.n_ctx = n_prompt + n_predict - 1;
// n_batch is the maximum number of tokens that can be processed in a single
// call to llama_decode
ctx_params.n_batch = n_prompt;
// enable performance counters
ctx_params.no_perf = false;
struct llama_context *ctx = llama_init_from_model(model, ctx_params);
if (ctx == NULL) {
fprintf(stderr, "%s: error: failed to create the llama_context\n",
__func__);
return 1;
}
// initialize the sampler
struct llama_sampler_chain_params sparams =
llama_sampler_chain_default_params();
sparams.no_perf = false;
struct llama_sampler *smpl = llama_sampler_chain_init(sparams);
llama_sampler_chain_add(smpl, llama_sampler_init_greedy());
// print the prompt token-by-token
for (int i = 0; i < n_prompt; i++) {
char buf[128];
int n = llama_token_to_piece(vocab, prompt_tokens[i], buf, sizeof(buf), 0,
true);
if (n < 0) {
fprintf(stderr, "%s: error: failed to convert token to piece\n",
__func__);
return 1;
}
buf[n] = '\0';
printf("%s", buf);
}
// prepare a batch for the prompt
llama_batch batch = llama_batch_get_one(prompt_tokens, n_prompt);
// main loop
const int64_t t_main_start = ggml_time_us();
int n_decode = 0;
llama_token new_token_id;
for (int n_pos = 0; n_pos + batch.n_tokens < n_prompt + n_predict;) {
// evaluate the current batch with the transformer model
if (llama_decode(ctx, batch)) {
fprintf(stderr, "%s : failed to eval, return code %d\n", __func__, 1);
return 1;
}
n_pos += batch.n_tokens;
// sample the next token
{
new_token_id = llama_sampler_sample(smpl, ctx, -1);
// is it an end of generation?
if (llama_vocab_is_eog(vocab, new_token_id)) {
break;
}
char buf[128];
int n =
llama_token_to_piece(vocab, new_token_id, buf, sizeof(buf), 0, true);
if (n < 0) {
fprintf(stderr, "%s: error: failed to convert token to piece\n",
__func__);
return 1;
}
buf[n] = '\0';
printf("%s", buf);
fflush(stdout);
// prepare the next batch with the sampled token
batch = llama_batch_get_one(&new_token_id, 1);
n_decode += 1;
}
}
printf("\n");
const int64_t t_main_end = ggml_time_us();
fprintf(stderr, "%s: decoded %d tokens in %.2f s, speed: %.2f t/s\n",
__func__, n_decode, (t_main_end - t_main_start) / 1000000.0f,
n_decode / ((t_main_end - t_main_start) / 1000000.0f));
fprintf(stderr, "\n");
llama_perf_sampler_print(smpl);
llama_perf_context_print(ctx);
fprintf(stderr, "\n");
llama_sampler_free(smpl);
llama_free(ctx);
llama_model_free(model);
free(prompt_tokens);
}