Files
exllamav2/eval/humaneval.py
2024-09-29 12:57:06 +02:00

222 lines
7.8 KiB
Python

from __future__ import annotations
import os, sys
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from human_eval.data import write_jsonl, read_problems
from exllamav2 import model_init
from exllamav2 import ExLlamaV2Cache, ExLlamaV2Cache_Q4, ExLlamaV2Cache_Q6, ExLlamaV2Cache_Q8
from exllamav2.generator import ExLlamaV2DynamicGenerator, ExLlamaV2DynamicJob, ExLlamaV2Sampler
import argparse, contextlib, subprocess
import util
# Args
parser = argparse.ArgumentParser(description = "Run HumanEval evaluation on EXL2 model")
parser.add_argument("-o", "--output", type = str, help = "Output .jsonl filename", required = True)
parser.add_argument("-cs", "--cache_size", type = int, default = None)
parser.add_argument("-spt", "--samples_per_task", type = int, default = 200)
parser.add_argument("-cq4", "--cache_q4", action = "store_true", help = "Use Q4 cache")
parser.add_argument("-cq6", "--cache_q6", action = "store_true", help = "Use Q6 cache")
parser.add_argument("-cq8", "--cache_q8", action = "store_true", help = "Use Q8 cache")
parser.add_argument("--max_tokens", type = int, default = 768, help = "Max number of tokens for each completion")
parser.add_argument("-pf", "--prompt_format", type = str, help = "Instruct format to apply. Default is raw completion (for base models) ")
parser.add_argument("-v", "--verbose", action = "store_true", help = "Spam completions to console while generating")
parser.add_argument("-e", "--eval", action = "store_true", help = "Run evaluation script on output file after sampling")
parser.add_argument("-temp", "--temperature", type = float, help = "Sampling temperature (0 for greedy), default: 0.6", default = 0.6)
parser.add_argument("-topk", "--top_k", type = int, help = "Top-k sampling, default: 50", default = 50)
parser.add_argument("-topp", "--top_p", type = float, help = "Top-p sampling, default: 0.6", default = 0.6)
parser.add_argument("-repp", "--repetition_penalty", type = float, help = "Token repetition penalty, default: 1.0", default = 1.0)
model_init.add_args(parser)
args = parser.parse_args()
# Validate args
directory = os.path.dirname(args.output)
if directory and not os.path.isdir(directory):
print(f" ## Directory for output file {args.output} does not exist.")
sys.exit()
if os.path.exists(args.output):
print(f" !! Warning: Output file exists and will be overwritten.")
# Prompt formats
prompt_formats = {
"raw": (
"```python\n{{problem}} ",
" "
),
"granite": (
"Question:\nComplete the following Python function:\n\n{{problem}}\n\nAnswer:\n"
"Sure! Here is how you might implement the function:\n\n```python\n{{problem}}",
" "
),
"llama": (
"[INST] <<SYS>>\n"
"You are a helpful AI coding assistant.\n"
"<</SYS>>\n\n"
"Complete the following Python function:\n\n"
"{{problem}} [/INST] "
"Sure! Here is how you might implement the function:\n\n```python\n{{problem}}",
" "
),
"llama3": (
"<|start_header_id|>system<|end_header_id|>\n\n"
"You are a helpful AI coding assistant.<|eot_id|>"
"<|start_header_id|>user<|end_header_id|>\n\n"
"Complete the following Python function:\n\n{{problem}}<|eot_id|>"
"<|start_header_id|>assistant<|end_header_id|>\n\n"
"Sure! Here is how you might implement the function:\n\n```python\n{{problem}}",
" "
),
"gemma": (
"<bos><start_of_turn>user\n"
"Complete the following Python function:\n\n{{problem}}<|eot_id|>"
"<start_of_turn>model\n"
"```python\n{{problem}}",
" "
)
}
if args.prompt_format is None:
prompt_format, prefix = "{{problem}}", " "
elif args.prompt_format in prompt_formats:
prompt_format, prefix = prompt_formats[args.prompt_format]
else:
print("Prompt format is not supported. Available formats:")
print("\n".join(prompt_formats.keys()))
sys.exit()
# Init model and cache
model_init.check_args(args)
model_init.print_options(args)
model, tokenizer = model_init.init(
args,
allow_auto_split = True,
progress = True,
max_output_len = 4,
max_input_len = 2048
)
if args.cache_q4: cache_type = ExLlamaV2Cache_Q4
elif args.cache_q6: cache_type = ExLlamaV2Cache_Q6
elif args.cache_q8: cache_type = ExLlamaV2Cache_Q8
else: cache_type = ExLlamaV2Cache
cache = cache_type(
model,
lazy = not model.loaded,
max_seq_len = args.cache_size or model.config.max_seq_len
)
if not model.loaded:
model.load_autosplit(cache, progress = True)
# Generator
generator = ExLlamaV2DynamicGenerator(
model = model,
cache = cache,
tokenizer = tokenizer,
max_batch_size = 256,
max_q_size = 4
)
gen_settings = ExLlamaV2Sampler.Settings(
token_repetition_penalty = args.repetition_penalty,
temperature = args.temperature,
top_k = args.top_k,
top_p = args.top_p
)
# Get problems
problems = read_problems()
num_samples_per_task = args.samples_per_task
# Create jobs
with util.get_progress() as progress:
task1 = progress.add_task("[red]Sample", total = len(problems) * num_samples_per_task, name = "Creating sample jobs")
for problem_id, problem in problems.items():
b_problem = problem["prompt"]
f_problem = prompt_format.replace("{{problem}}", b_problem)
input_ids = tokenizer.encode(f_problem, encode_special_tokens=True, add_bos=True)
for s in range(num_samples_per_task):
job = ExLlamaV2DynamicJob(
input_ids = input_ids,
gen_settings = gen_settings,
max_new_tokens = args.max_tokens,
stop_conditions = [tokenizer.eos_token_id],
token_healing = True,
identifier = (problem_id, s),
min_new_tokens = 6
)
generator.enqueue(job)
progress.update(task1, advance = 1)
# Collect samples here
samples = []
# Work
total_jobs = generator.num_remaining_jobs()
cm = contextlib.nullcontext() if args.verbose else util.get_progress()
with cm as progress:
if not args.verbose:
task1 = progress.add_task("[red]Sample", total = total_jobs, name = "Generating samples")
while generator.num_remaining_jobs():
results = generator.iterate()
for result in results:
# End sample if generator says EOS or if there is a non-indented line at the end of the output
job = result["job"]
eos = False
completion = job.full_completion
last_newline_index = completion.rfind("\n")
if last_newline_index >= 0:
last_line = completion[last_newline_index + 1:]
if last_line != "" and not last_line[0].isspace():
completion = completion[:last_newline_index]
eos = True
eos = eos or result["eos"]
# Collect completed sample
if eos:
identifier = result["identifier"]
sample = problems[identifier[0]]["prompt"] + prefix + completion.strip()
if not result["eos"]:
generator.cancel(job)
if args.verbose:
print("----------------------------------------------------------------------")
print(f" ** Problem {identifier[0]}, sample {identifier[1] + 1} / {num_samples_per_task}")
print("----------------------------------------------------------------------")
print(sample)
print()
else:
progress.update(task1, advance = 1)
samples.append(dict(task_id = identifier[0], completion = prefix + completion.strip()))
# Save output
print(f" -- Saving: {args.output}")
write_jsonl(args.output, samples)
# Optionally launch eval script
if args.eval:
subprocess.run(["evaluate_functional_correctness", args.output])