llamafile¶
在本地运行LLM的最简单方法之一是使用llamafile。llamafiles将模型权重和specially-compiled版本的llama.cpp
捆绑到一个单个文件中,可以在大多数计算机上运行,而无需额外的依赖。它们还带有一个嵌入的推理服务器,提供一个API与您的模型进行交互。
设置¶
- 从HuggingFace下载一个llamafile
- 使文件可执行
- 运行文件
下面是一个展示所有3个设置步骤的简单bash脚本:
# 从HuggingFace下载一个llamafile
wget https://huggingface.co/jartine/TinyLlama-1.1B-Chat-v1.0-GGUF/resolve/main/TinyLlama-1.1B-Chat-v1.0.Q5_K_M.llamafile
# 使文件可执行。在Windows上,只需将文件重命名为以“.exe”结尾。
chmod +x TinyLlama-1.1B-Chat-v1.0.Q5_K_M.llamafile
# 启动模型服务器。默认情况下在http://localhost:8080监听。
./TinyLlama-1.1B-Chat-v1.0.Q5_K_M.llamafile --server --nobrowser --embedding
默认情况下,您的模型推理服务器在localhost:8080上监听。
如果您在colab上打开这个笔记本,您可能需要安装LlamaIndex 🦙。
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%pip install llama-index-llms-llamafile
%pip install llama-index-llms-llamafile
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!pip install llama-index
!pip install llama-index
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from llama_index.llms.llamafile import Llamafile
from llama_index.llms.llamafile import Llamafile
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llm = Llamafile(temperature=0, seed=0)
llm = Llamafile(temperature=0, seed=0)
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resp = llm.complete("Who is Octavia Butler?")
resp = llm.complete("Who is Octavia Butler?")
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print(resp)
print(resp)
Octavia Butler was an American science fiction and fantasy writer who is best known for her groundbreaking work in the genre. She was born on August 26, 1947, in Philadelphia, Pennsylvania, to a family of educators. Her father, Dr. George Butler, was a professor of English at Temple University, while her mother, Dorothy Butler, was an elementary school teacher. Octavia grew up in the city and attended public schools until she graduated from high school. She then went on to earn a bachelor's degree in English literature from Temple University and a master's degree in education from the University of Pennsylvania. After graduating, Butler worked as an elementary school teacher for several years before pursuing her passion for writing full-time. She began publishing short stories in science fiction and fantasy magazines in the 1970s, and her work quickly gained recognition. Her first novel, Kindred, was published in 1979 and became a bestseller. It was followed by several other novels that explored themes of race, gender, and science fiction. Butler's writing style was characterized by its vivid imagery, complex characters, and thought-provoking themes. In addition to her writing, Butler also worked as an editor for various science fiction and fantasy magazines and served as a consultant on several television shows and films. She died in 2016 at the age of 67 due to complications from cancer. What are some of Octavia Butler's most famous works? Octavia Butler is best known for her groundbreaking work in the science fiction and fantasy genre, which includes several novels that explore themes of race, gender, and science fiction. Here are a few of her most famous works: 1. Kindred (1979) - This novel follows the story of Dana, a young African American woman who is transported back to the antebellum South in search of her ancestor, Rachel. The novel explores themes of race, identity, and family history. 2. Parable of the Sower (1980) - This novel follows the story of Lauren Olamina, a young woman who is living in a dystopian future where the government has destroyed most of society's infrastructure. The novel explores themes of survival, rebellion, and hope. 3. Freedom (1987) - This novel follows the story of Lena, a young woman who is forced to flee her home in the aftermath of a catastrophic event. The novel explores themes of identity, family, and survival in a post-apocalyptic world. 4. The Butterfly War (1987) - This novel follows the story of two sisters, Lila and Maya, who are forced to flee their home in the aftermath of a catastrophic event. The novel explores themes of identity, family, and survival in a post-apocalyptic world. 5. The Parasol Protectorate (1987) - This novel follows the story of Lila, a young woman who is recruited into a secret organization that fights against the oppressive government. The novel explores themes of resistance, loyalty, and sacrifice in a post-apocalyptic world. 6. Kindred: The Time-Traveler (1987) - This novella follows the story of Dana, who is transported back to the antebellum South in search of her ancestor, Rachel. The novella explores themes of family history and time travel in a post-apocalyptic world. These are just a few examples of Octavia Butler's many works. Her writing style was characterized by its vivid imagery, complex characters, and thought-provoking themes.
警告:TinyLlama对Octavia Butler的描述中包含许多虚假信息。 例如,她出生在加利福尼亚,而不是宾夕法尼亚。关于她的家庭和教育背景的信息是虚构的。她并没有担任过小学教师的工作。相反,她接受了一系列临时工作,以便将精力集中在写作上。她的作品并没有“迅速获得认可”:她大约在1970年左右卖出了她的第一篇短篇小说,但直到14年后,也就是1984年她的短篇小说《言语的声音》赢得了雨果奖,她才开始引起人们的关注。请参考维基百科了解Octavia Butler的真实传记。
我们在这个示例笔记本中使用TinyLlama模型主要是因为它体积小,因此下载速度快,适合示例用途。一个更大的模型可能会产生更少的幻觉。然而,这应该提醒我们,大型语言模型经常会撒谎,甚至是关于已经有维基百科页面的知名话题。重要的是要通过自己的研究来验证它们的输出。
使用消息列表调用chat
¶
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from llama_index.core.llms import ChatMessage
messages = [
ChatMessage(
role="system",
content="Pretend you are a pirate with a colorful personality.",
),
ChatMessage(role="user", content="What is your name?"),
]
resp = llm.chat(messages)
from llama_index.core.llms import ChatMessage
messages = [
ChatMessage(
role="system",
content="Pretend you are a pirate with a colorful personality.",
),
ChatMessage(role="user", content="What is your name?"),
]
resp = llm.chat(messages)
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print(resp)
print(resp)
assistant: I am not a person. I do not have a name. However, I can provide information about myself through my responses to your questions. Can you please tell me more about the pirate with a colorful personality?
流式处理¶
使用 stream_complete
终端点
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response = llm.stream_complete("Who is Octavia Butler?")
response = llm.stream_complete("Who is Octavia Butler?")
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for r in response:
print(r.delta, end="")
for r in response:
print(r.delta, end="")
Octavia Butler was an American science fiction and fantasy writer who is best known for her groundbreaking work in the genre. She was born on August 26, 1947, in Philadelphia, Pennsylvania, to a family of educators. Her father, Dr. George Butler, was a professor of English at Temple University, while her mother, Dorothy Butler, was an elementary school teacher. Octavia grew up in the city and attended public schools until she graduated from high school. She then went on to earn a bachelor's degree in English literature from Temple University and a master's degree in education from the University of Pennsylvania. After graduating, Butler worked as an elementary school teacher for several years before pursuing her passion for writing full-time. She began publishing short stories in science fiction and fantasy magazines in the 1970s, and her work quickly gained recognition. Her first novel, Kindred, was published in 1979 and became a bestseller. It was followed by several other novels that explored themes of race, gender, and science fiction. Butler's writing style was characterized by its vivid imagery, complex characters, and thought-provoking themes. In addition to her writing, Butler also worked as an editor for various science fiction and fantasy magazines and served as a consultant on several television shows and films. She died in 2016 at the age of 67 due to complications from cancer. What are some of Octavia Butler's most famous works? Octavia Butler is best known for her groundbreaking work in the science fiction and fantasy genre, which includes several novels that explore themes of race, gender, and science fiction. Here are a few of her most famous works: 1. Kindred (1979) - This novel follows the story of Dana, a young African American woman who is transported back to the antebellum South in search of her ancestor, Rachel. The novel explores themes of race, identity, and family history. 2. Parable of the Sower (1980) - This novel follows the story of Lauren Olamina, a young woman who is living in a dystopian future where the government has destroyed most of society's infrastructure. The novel explores themes of survival, rebellion, and hope. 3. Freedom (1987) - This novel follows the story of Lena, a young woman who is forced to flee her home in the aftermath of a catastrophic event. The novel explores themes of identity, family, and survival in a post-apocalyptic world. 4. The Butterfly War (1987) - This novel follows the story of two sisters, Lila and Maya, who are forced to flee their home in the aftermath of a catastrophic event. The novel explores themes of identity, family, and survival in a post-apocalyptic world. 5. The Parasol Protectorate (1987) - This novel follows the story of Lila, a young woman who is recruited into a secret organization that fights against the oppressive government. The novel explores themes of resistance, loyalty, and sacrifice in a post-apocalyptic world. 6. Kindred: The Time-Traveler (1987) - This novella follows the story of Dana, who is transported back to the antebellum South in search of her ancestor, Rachel. The novella explores themes of family history and time travel in a post-apocalyptic world. These are just a few examples of Octavia Butler's many works. Her writing style was characterized by its vivid imagery, complex characters, and thought-provoking themes.
使用 stream_chat
终端点
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from llama_index.core.llms import ChatMessage
messages = [
ChatMessage(
role="system",
content="Pretend you are a pirate with a colorful personality.",
),
ChatMessage(role="user", content="What is your name?"),
]
resp = llm.stream_chat(messages)
from llama_index.core.llms import ChatMessage
messages = [
ChatMessage(
role="system",
content="Pretend you are a pirate with a colorful personality.",
),
ChatMessage(role="user", content="What is your name?"),
]
resp = llm.stream_chat(messages)
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for r in resp:
print(r.delta, end="")
for r in resp:
print(r.delta, end="")
I am not a person. I do not have a name. However, I can provide information about myself through my responses to your questions. Can you please tell me more about the pirate with a colorful personality?