
# ALMA-Cymraeg-13B
Fersiwn Gymraeg o fodel cyfieithu [ALMA](https://github.com/fe1ixxu/ALMA) a ddisgrifir yn [https://arxiv.org/abs/2309.11674](https://arxiv.org/abs/2309.11674). \
_This is a Welsh version of the [ALMA](https://github.com/fe1ixxu/ALMA) LLM-based translation model._

Mae'r model LLM yn seiliedig ar Lama-2-13B, gyda hyfforddiant parhaus ar ddata Gymreig [OSCAR-2301](https://huggingface.co/datasets/oscar-corpus/OSCAR-2301) am 3 Epoch
ac yna hyfforddiant cywrain pellach ar ddata Cofnod y Cynulliad a ddarparir gan [TechIaith](https://huggingface.co/techiaith).

Mae'r fersiwn yma wedi ei gywasgu i 4.0bpw er mwyn llwytho mewn cof GPU o 10GB gyda testyn hyd at 4096 tocyn gan ddefnyddio [ExLlamaV2](https://github.com/turboderp/exllamav2).

### Fformat Sgwrs

Mae'r hyfforddiant cywrain wedi defnyddio'r fformat canlynol ar gyfer trosi o'r Saesneg i'r Gymraeg (a'r naill ffordd i'r llall).
```
Cyfieithwch y testun Saesneg canlynol i'r Gymraeg.
### Saesneg:
{prompt}

### Cymraeg:

```



#### Esiampl

```python
import time
import sys, os
import dataclasses
sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

from exllamav2 import(
    ExLlamaV2,
    ExLlamaV2Config,
    ExLlamaV2Cache,
    ExLlamaV2Tokenizer,
    ExLlamaV2Lora,    
)

from exllamav2.generator import (
    ExLlamaV2StreamingGenerator,
    ExLlamaV2Sampler
)


class ModelClass:
    def __init__(self, generator, tokenizer, model):
        self.generator = generator
        self.tokenizer = tokenizer
        self.model = model

DEBUG = os.environ.get("DEBUG") and True or False

# Cychwyn model a storfa
def load_model(model_directory, max_seq_len=4096):
    """
    Yn llwytho model o gyfeiriadur ac yn dychwelyd y generadur a'r tocynnwr
    """
    config = ExLlamaV2Config()
    config.model_dir = model_directory
    config.max_seq_len = max_seq_len
    config.prepare()

    model = ExLlamaV2(config)
    print("Llwytho model: " + model_directory)

    cache = ExLlamaV2Cache(model, lazy = True, max_seq_len=max_seq_len)
    model.load_autosplit(cache)

    tokenizer = ExLlamaV2Tokenizer(config)
    generator = ExLlamaV2StreamingGenerator(model, cache, tokenizer)
    model = ModelClass(generator=generator, tokenizer=tokenizer, model=model)
    generator.warmup()
    return model

def generate_text(prompt, settings, max_new_tokens):
    sys.stdout.flush()
    input_ids = base_model.tokenizer.encode(prompt)
    generated_tokens = 0 # input_ids.shape[-1]
    base_model.generator.set_stop_conditions(["\n"])
    base_model.generator.begin_stream(input_ids, settings)
    time_begin = time.time()

    while True:
        chunk, eos, _ = base_model.generator.stream()
        generated_tokens += 1
        print (chunk, end = "")
        sys.stdout.flush()
        if eos or generated_tokens == max_new_tokens: break

    time_end = time.time()
    time_total = time_end - time_begin
    print(f"\nYmateb cyflawn mewn {time_total:.2f} eiliad, {generated_tokens} tocyn, {generated_tokens / time_total:.2f} tocyn/eiliad")
    return ""

base_model = load_model("./ALMA-Cymraeg-13B-0.1-4.0bpw-exl2")

settings = ExLlamaV2Sampler.Settings()
settings.temperature = 0.15 # newid fel bod angen e.e. 0.75
settings.top_k = 90 # newid fel bod angen e.e. 50
settings.top_p = 1.0 # ayyb
settings.token_repetition_penalty = 1.15 # ayyb
max_new_tokens = 2000 # ayyb

system_prompt = "Cyfieithwch y testun Saesneg canlynol i'r Gymraeg."

while True:
    user_input = input("Saesneg: ")

    prompt = f"{system_prompt}\n\n### Saesneg:\n{user_input}\n\n### Cymraeg:\n"
    if DEBUG: print(f"{prompt}\n\n")
    print("Cymraeg:")
    response = generate_text(prompt, settings, max_new_tokens)
    print("="*132)
```

## Hawlfraint

Mae'r model yn seiliedig ar Llama2 ac felly dan drwydded gan [Meta](https://ai.meta.com/llama/license/). \
Mae'r data Cofnod y Cynulliad dan drywdded [Llywodraeth Agored](https://www.nationalarchives.gov.uk/doc/open-government-licence-cymraeg/version/3/).
{"license": "llama2", "widget": [{"example_title": "ALMA-Cymraeg-13B", "text": "Cyfieithwch y testun Saesneg canlynol i'r Gymraeg.\n### Saesneg:\nFor the first time, GPs no longer have to physically print, sign and hand a green paper prescription form to the patient or wait for it to be taken to the pharmacy. Instead, the prescription is sent electronically from the surgery via the IT system to the patient\u2019s chosen pharmacy - even without the patient needing to visit the surgery to pick up a repeat prescription form.\n\n### Cymraeg:\n", "output": {"text": "Am y tro cyntaf, nid oes rhaid i feddygon teulu bellach argraffu, llofnodi a throsglwyddo ffurflen bresgripsiwn werdd i'r claf neu aros iddi gael ei chludo i'r fferyllfa. Yn lle hynny, caiff y presgripsiwn ei anfon yn electronig gan y practis drwy'r system TG at fferyllfa ddewisedig y claf - heb fod angen i'r claf ymweld \u00e2'r practis er mwyn casglu ffurflen bresgripsiwn ailadrodd."}}], "pipeline_tag": "text-generation"}
transformers safetensors llama text-generation arxiv:2309.11674 license:llama2 autotrain_compatible endpoints_compatible text-generation-inference region:us