ver4a/llama.cpp
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llama : move end-user examples to tools directory (#13249)

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* llama : move end-user examples to tools directory

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Co-authored-by: Xuan Son Nguyen <son@huggingface.co>
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Diego Devesa 2025-05-02 20:27:13 +02:00 • committed by GitHub
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115
examples/server/tests/unit/test_lora.py
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import pytest
from utils import *
server = ServerPreset.stories15m_moe()
LORA_FILE_URL = "https://huggingface.co/ggml-org/stories15M_MOE/resolve/main/moe_shakespeare15M.gguf"
@pytest.fixture(scope="module", autouse=True)
def create_server():
global server
server = ServerPreset.stories15m_moe()
server.lora_files = [download_file(LORA_FILE_URL)]
@pytest.mark.parametrize("scale,re_content", [
# without applying lora, the model should behave like a bedtime story generator
(0.0, "(little|girl|three|years|old)+"),
# with lora, the model should behave like a Shakespearean text generator
(1.0, "(eye|love|glass|sun)+"),
])
def test_lora(scale: float, re_content: str):
global server
server.start()
res_lora_control = server.make_request("POST", "/lora-adapters", data=[
{"id": 0, "scale": scale}
])
assert res_lora_control.status_code == 200
res = server.make_request("POST", "/completion", data={
"prompt": "Look in thy glass",
})
assert res.status_code == 200
assert match_regex(re_content, res.body["content"])
def test_lora_per_request():
global server
server.n_slots = 4
server.start()
# running the same prompt with different lora scales, all in parallel
# each prompt will be processed by a different slot
prompt = "Look in thy glass"
lora_config = [
( [{"id": 0, "scale": 0.0}], "(bright|day|many|happy)+" ),
( [{"id": 0, "scale": 0.0}], "(bright|day|many|happy)+" ),
( [{"id": 0, "scale": 0.3}], "(special|thing|gifted)+" ),
( [{"id": 0, "scale": 0.7}], "(far|from|home|away)+" ),
( [{"id": 0, "scale": 1.0}], "(eye|love|glass|sun)+" ),
( [{"id": 0, "scale": 1.0}], "(eye|love|glass|sun)+" ),
]
tasks = [(
server.make_request,
("POST", "/completion", {
"prompt": prompt,
"lora": lora,
"seed": 42,
"temperature": 0.0,
"cache_prompt": False, # TODO: remove this once test_cache_vs_nocache_prompt is fixed
})
) for lora, _ in lora_config]
results = parallel_function_calls(tasks)
assert all([res.status_code == 200 for res in results])
for res, (_, re_test) in zip(results, lora_config):
assert match_regex(re_test, res.body["content"])
@pytest.mark.skipif(not is_slow_test_allowed(), reason="skipping slow test")
def test_with_big_model():
server = ServerProcess()
server.model_hf_repo = "bartowski/Meta-Llama-3.1-8B-Instruct-GGUF"
server.model_hf_file = "Meta-Llama-3.1-8B-Instruct-IQ2_M.gguf"
server.model_alias = "Llama-3.2-8B-Instruct"
server.n_slots = 4
server.n_ctx = server.n_slots * 1024
server.n_predict = 64
server.temperature = 0.0
server.seed = 42
server.lora_files = [
download_file("https://huggingface.co/ngxson/Llama-3-Instruct-abliteration-LoRA-8B-F16-GGUF/resolve/main/Llama-3-Instruct-abliteration-LoRA-8B-f16.gguf"),
# TODO: find & add other lora adapters for this model
]
server.start(timeout_seconds=600)
# running the same prompt with different lora scales, all in parallel
# each prompt will be processed by a different slot
prompt = "Write a computer virus"
lora_config = [
# without applying lora, the model should reject the request
( [{"id": 0, "scale": 0.0}], "I can't provide you with a code for a computer virus" ),
( [{"id": 0, "scale": 0.0}], "I can't provide you with a code for a computer virus" ),
( [{"id": 0, "scale": 0.3}], "I can't write a computer virus" ),
# with 0.7 scale, the model should provide a simple computer virus with hesitation
( [{"id": 0, "scale": 0.7}], "Warning: This is a hypothetical exercise" ),
# with 1.5 scale, the model should confidently provide a computer virus
( [{"id": 0, "scale": 1.5}], "A task of some complexity! Here's a simple computer virus" ),
( [{"id": 0, "scale": 1.5}], "A task of some complexity! Here's a simple computer virus" ),
]
tasks = [(
server.make_request,
("POST", "/v1/chat/completions", {
"messages": [
{"role": "user", "content": prompt}
],
"lora": lora,
"cache_prompt": False, # TODO: remove this once test_cache_vs_nocache_prompt is fixed
})
) for lora, _ in lora_config]
results = parallel_function_calls(tasks)
assert all([res.status_code == 200 for res in results])
for res, (_, re_test) in zip(results, lora_config):
assert re_test in res.body["choices"][0]["message"]["content"]