introduce ollama cpp optimized for Xeon CPU

comps/llms/text-generation/ollama/README.md

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+# Introduction
+
+[Ollama](https://github.com/ollama/ollama) allows you to run open-source large language models, such as Llama 3, locally. Ollama bundles model weights, configuration, and data into a single package, defined by a Modelfile. Ollama is a lightweight, extensible framework for building and running language models on the local machine. It provides a simple API for creating, running, and managing models, as well as a library of pre-built models that can be easily used in a variety of applications. It's the best choice to deploy large language models on AIPC locally.

comps/llms/text-generation/ollama/cpp/xeon/Dockerfile

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+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+FROM ubuntu:latest
+RUN apt update && apt -y install wget git cmake build-essential
+RUN wget https://go.dev/dl/go1.23.2.linux-amd64.tar.gz && rm -rf /usr/local/go && tar -C /usr/local -xzf go1.23.2.linux-amd64.tar.gz
+ENV PATH="$PATH:/usr/local/go/bin"
+WORKDIR /ollama
+RUN git clone https://github.com/ollama/ollama.git .
+RUN cd /ollama && OLLAMA_CUSTOM_CPU_DEFS="-DGGML_AVX=on -DGGML_AVX2=on -DGGML_F16C=on -DGGML_FMA=on -DGGML_AVX512=on -DGGML_AVX512_VNNI=on -DGGML_AVX512_VBMI=on " go generate ./... && go build .
+ENV PATH="$PATH:/ollama"
+COPY entrypoint.sh .
+ENTRYPOINT ["bash", "entrypoint.sh"]

comps/llms/text-generation/ollama/cpp/xeon/README.md

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+# Introduction
+
+This Ollama server was compiled from the [official Ollama repository](https://github.com/ollama/ollama) with additional flags suitable for Intel Xeon CPU. Below are the compilation flags:
+
+- `DGGML_AVX=on`
+- `DGGML_AVX2=on`
+- `DGGML_F16C=on`
+- `DGGML_FMA=on`
+- `DGGML_AVX512=on`
+- `DGGML_AVX512_VNNI=on`
+- `DGGML_AVX512_VBMI=on`
+
+## Usage
+
+1. Start the microservice
+
+```bash
+docker run --network host opea/llm-ollama-cpp-xeon:latest
+```
+
+2. Send an application/json request to the API endpoint of Ollama to interact.
+
+```bash
+curl --noproxy "*" http://localhost:11434/api/generate -d '{
+  "model": "phi3",
+  "prompt":"Why is the sky blue?"
+}'
+```
+
+## Build Docker Image
+
+```bash
+cd comps/llms/text-generation/ollama/cpp/xeon
+docker build -t opea/llm-ollama-cpp-xeon:latest --build-arg https_proxy=$https_proxy --build-arg http_proxy=$http_proxy -f Dockerfile .
+```

comps/llms/text-generation/ollama/cpp/xeon/entrypoint.sh

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+#!/usr/bin/env bash
+
+# Copyright (C) 2024 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+ollama serve