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diff --git a/docs/backend/SYCL.md b/docs/backend/SYCL.md new file mode 100644 index 00000000..d36ac0a1 --- /dev/null +++ b/docs/backend/SYCL.md @@ -0,0 +1,580 @@ +# llama.cpp for SYCL + +- [Background](#background) +- [Recommended Release](#recommended-release) +- [News](#news) +- [OS](#os) +- [Hardware](#hardware) +- [Docker](#docker) +- [Linux](#linux) +- [Windows](#windows) +- [Environment Variable](#environment-variable) +- [Known Issue](#known-issues) +- [Q&A](#qa) +- [TODO](#todo) + +## Background + +**SYCL** is a high-level parallel programming model designed to improve developers productivity writing code across various hardware accelerators such as CPUs, GPUs, and FPGAs. It is a single-source language designed for heterogeneous computing and based on standard C++17. + +**oneAPI** is an open ecosystem and a standard-based specification, supporting multiple architectures including but not limited to intel CPUs, GPUs and FPGAs. The key components of the oneAPI ecosystem include: + +- **DPCPP** *(Data Parallel C++)*: The primary oneAPI SYCL implementation, which includes the icpx/icx Compilers. +- **oneAPI Libraries**: A set of highly optimized libraries targeting multiple domains *(e.g. oneMKL - Math Kernel Library)*. +- **oneAPI LevelZero**: A high performance low level interface for fine-grained control over intel iGPUs and dGPUs. +- **Nvidia & AMD Plugins**: These are plugins extending oneAPI's DPCPP support to SYCL on Nvidia and AMD GPU targets. + +### Llama.cpp + SYCL + +The llama.cpp SYCL backend is designed to support **Intel GPU** firstly. Based on the cross-platform feature of SYCL, it could support other vendor GPUs: Nvidia GPU (*AMD GPU coming*). + +When targeting **Intel CPU**, it is recommended to use llama.cpp for [Intel oneMKL](README.md#intel-onemkl) backend. + +It has the similar design of other llama.cpp BLAS-based paths such as *OpenBLAS, cuBLAS, etc..*. In beginning work, the oneAPI's [SYCLomatic](https://github.com/oneapi-src/SYCLomatic) open-source migration tool (Commercial release [Intel® DPC++ Compatibility Tool](https://www.intel.com/content/www/us/en/developer/tools/oneapi/dpc-compatibility-tool.html)) was used for this purpose. + +## Recommended Release + +The SYCL backend would be broken by some PRs due to no online CI. + +The following release is verified with good quality: + +|Commit ID|Tag|Release|Verified Platform| +|-|-|-|-| +|fb76ec31a9914b7761c1727303ab30380fd4f05c|b3038 |[llama-b3038-bin-win-sycl-x64.zip](https://github.com/ggerganov/llama.cpp/releases/download/b3038/llama-b3038-bin-win-sycl-x64.zip) |Arc770/Linux/oneAPI 2024.1<br>MTL Arc GPU/Windows 11/oneAPI 2024.1| + + +## News + +- 2024.5 + - Performance is increased: 34 -> 37 tokens/s of llama-2-7b.Q4_0 on Arc770. + - Arch Linux is verified successfully. + +- 2024.4 + - Support data types: GGML_TYPE_IQ4_NL, GGML_TYPE_IQ4_XS, GGML_TYPE_IQ3_XXS, GGML_TYPE_IQ3_S, GGML_TYPE_IQ2_XXS, GGML_TYPE_IQ2_XS, GGML_TYPE_IQ2_S, GGML_TYPE_IQ1_S, GGML_TYPE_IQ1_M. + +- 2024.3 + - Release binary files of Windows. + - A blog is published: **Run LLM on all Intel GPUs Using llama.cpp**: [intel.com](https://www.intel.com/content/www/us/en/developer/articles/technical/run-llm-on-all-gpus-using-llama-cpp-artical.html) or [medium.com](https://medium.com/@jianyu_neo/run-llm-on-all-intel-gpus-using-llama-cpp-fd2e2dcbd9bd). + - New base line is ready: [tag b2437](https://github.com/ggerganov/llama.cpp/tree/b2437). + - Support multiple cards: **--split-mode**: [none|layer]; not support [row], it's on developing. + - Support to assign main GPU by **--main-gpu**, replace $GGML_SYCL_DEVICE. + - Support detecting all GPUs with level-zero and same top **Max compute units**. + - Support OPs + - hardsigmoid + - hardswish + - pool2d + +- 2024.1 + - Create SYCL backend for Intel GPU. + - Support Windows build + +## OS + +| OS | Status | Verified | +|---------|---------|------------------------------------------------| +| Linux | Support | Ubuntu 22.04, Fedora Silverblue 39, Arch Linux | +| Windows | Support | Windows 11 | + + +## Hardware + +### Intel GPU + +**Verified devices** + +| Intel GPU | Status | Verified Model | +|-------------------------------|---------|---------------------------------------| +| Intel Data Center Max Series | Support | Max 1550, 1100 | +| Intel Data Center Flex Series | Support | Flex 170 | +| Intel Arc Series | Support | Arc 770, 730M, Arc A750 | +| Intel built-in Arc GPU | Support | built-in Arc GPU in Meteor Lake | +| Intel iGPU | Support | iGPU in i5-1250P, i7-1260P, i7-1165G7 | + +*Notes:* + +- **Memory** + - The device memory is a limitation when running a large model. The loaded model size, *`llm_load_tensors: buffer_size`*, is displayed in the log when running `./bin/llama-cli`. + + - Please make sure the GPU shared memory from the host is large enough to account for the model's size. For e.g. the *llama-2-7b.Q4_0* requires at least 8.0GB for integrated GPU and 4.0GB for discrete GPU. + +- **Execution Unit (EU)** + - If the iGPU has less than 80 EUs, the inference speed will likely be too slow for practical use. + +### Other Vendor GPU + +**Verified devices** + +| Nvidia GPU | Status | Verified Model | +|--------------------------|---------|----------------| +| Ampere Series | Support | A100, A4000 | +| Ampere Series *(Mobile)* | Support | RTX 40 Series | + +## Docker +The docker build option is currently limited to *intel GPU* targets. + +### Build image +```sh +# Using FP16 +docker build -t llama-cpp-sycl --build-arg="GGML_SYCL_F16=ON" -f .devops/llama-cli-intel.Dockerfile . +``` + +*Notes*: + +To build in default FP32 *(Slower than FP16 alternative)*, you can remove the `--build-arg="GGML_SYCL_F16=ON"` argument from the previous command. + +You can also use the `.devops/llama-server-intel.Dockerfile`, which builds the *"server"* alternative. + +### Run container + +```sh +# First, find all the DRI cards +ls -la /dev/dri +# Then, pick the card that you want to use (here for e.g. /dev/dri/card1). +docker run -it --rm -v "$(pwd):/app:Z" --device /dev/dri/renderD128:/dev/dri/renderD128 --device /dev/dri/card1:/dev/dri/card1 llama-cpp-sycl -m "/app/models/YOUR_MODEL_FILE" -p "Building a website can be done in 10 simple steps:" -n 400 -e -ngl 33 +``` + +*Notes:* +- Docker has been tested successfully on native Linux. WSL support has not been verified yet. +- You may need to install Intel GPU driver on the **host** machine *(Please refer to the [Linux configuration](#linux) for details)*. + +## Linux + +### I. Setup Environment + +1. **Install GPU drivers** + + - **Intel GPU** + +Intel data center GPUs drivers installation guide and download page can be found here: [Get intel dGPU Drivers](https://dgpu-docs.intel.com/driver/installation.html#ubuntu-install-steps). + +*Note*: for client GPUs *(iGPU & Arc A-Series)*, please refer to the [client iGPU driver installation](https://dgpu-docs.intel.com/driver/client/overview.html). + +Once installed, add the user(s) to the `video` and `render` groups. + +```sh +sudo usermod -aG render $USER +sudo usermod -aG video $USER +``` + +*Note*: logout/re-login for the changes to take effect. + +Verify installation through `clinfo`: + +```sh +sudo apt install clinfo +sudo clinfo -l +``` + +Sample output: + +```sh +Platform #0: Intel(R) OpenCL Graphics + `-- Device #0: Intel(R) Arc(TM) A770 Graphics + +Platform #0: Intel(R) OpenCL HD Graphics + `-- Device #0: Intel(R) Iris(R) Xe Graphics [0x9a49] +``` + +- **Nvidia GPU** + +In order to target Nvidia GPUs through SYCL, please make sure the CUDA/CUBLAS native requirements *-found [here](README.md#cuda)-* are installed. + +2. **Install Intel® oneAPI Base toolkit** + +- **For Intel GPU** + +The base toolkit can be obtained from the official [Intel® oneAPI Base Toolkit](https://www.intel.com/content/www/us/en/developer/tools/oneapi/base-toolkit.html) page. + +Please follow the instructions for downloading and installing the Toolkit for Linux, and preferably keep the default installation values unchanged, notably the installation path *(`/opt/intel/oneapi` by default)*. + +Following guidelines/code snippets assume the default installation values. Otherwise, please make sure the necessary changes are reflected where applicable. + +Upon a successful installation, SYCL is enabled for the available intel devices, along with relevant libraries such as oneAPI MKL for intel GPUs. + +- **Adding support to Nvidia GPUs** + +**oneAPI Plugin**: In order to enable SYCL support on Nvidia GPUs, please install the [Codeplay oneAPI Plugin for Nvidia GPUs](https://developer.codeplay.com/products/oneapi/nvidia/download). User should also make sure the plugin version matches the installed base toolkit one *(previous step)* for a seamless "oneAPI on Nvidia GPU" setup. + + +**oneMKL for cuBlas**: The current oneMKL releases *(shipped with the oneAPI base-toolkit)* do not contain the cuBLAS backend. A build from source of the upstream [oneMKL](https://github.com/oneapi-src/oneMKL) with the *cuBLAS* backend enabled is thus required to run it on Nvidia GPUs. + +```sh +git clone https://github.com/oneapi-src/oneMKL +cd oneMKL +cmake -B buildWithCublas -DCMAKE_CXX_COMPILER=icpx -DCMAKE_C_COMPILER=icx -DENABLE_MKLGPU_BACKEND=OFF -DENABLE_MKLCPU_BACKEND=OFF -DENABLE_CUBLAS_BACKEND=ON -DTARGET_DOMAINS=blas +cmake --build buildWithCublas --config Release +``` + + +3. **Verify installation and environment** + +In order to check the available SYCL devices on the machine, please use the `sycl-ls` command. +```sh +source /opt/intel/oneapi/setvars.sh +sycl-ls +``` + +- **Intel GPU** + +When targeting an intel GPU, the user should expect one or more level-zero devices among the available SYCL devices. Please make sure that at least one GPU is present, for instance [`ext_oneapi_level_zero:gpu:0`] in the sample output below: + +``` +[opencl:acc:0] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device OpenCL 1.2 [2023.16.10.0.17_160000] +[opencl:cpu:1] Intel(R) OpenCL, 13th Gen Intel(R) Core(TM) i7-13700K OpenCL 3.0 (Build 0) [2023.16.10.0.17_160000] +[opencl:gpu:2] Intel(R) OpenCL Graphics, Intel(R) Arc(TM) A770 Graphics OpenCL 3.0 NEO [23.30.26918.50] +[ext_oneapi_level_zero:gpu:0] Intel(R) Level-Zero, Intel(R) Arc(TM) A770 Graphics 1.3 [1.3.26918] +``` + +- **Nvidia GPU** + +Similarly, user targeting Nvidia GPUs should expect at least one SYCL-CUDA device [`ext_oneapi_cuda:gpu`] as bellow: +``` +[opencl:acc:0] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device OpenCL 1.2 [2023.16.12.0.12_195853.xmain-hotfix] +[opencl:cpu:1] Intel(R) OpenCL, Intel(R) Xeon(R) Gold 6326 CPU @ 2.90GHz OpenCL 3.0 (Build 0) [2023.16.12.0.12_195853.xmain-hotfix] +[ext_oneapi_cuda:gpu:0] NVIDIA CUDA BACKEND, NVIDIA A100-PCIE-40GB 8.0 [CUDA 12.2] +``` + +### II. Build llama.cpp + +#### Intel GPU +```sh +# Export relevant ENV variables +source /opt/intel/oneapi/setvars.sh + +# Build LLAMA with MKL BLAS acceleration for intel GPU + +# Option 1: Use FP32 (recommended for better performance in most cases) +cmake -B build -DGGML_SYCL=ON -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx + +# Option 2: Use FP16 +cmake -B build -DGGML_SYCL=ON -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DGGML_SYCL_F16=ON + +# build all binary +cmake --build build --config Release -j -v +``` + +#### Nvidia GPU +```sh +# Export relevant ENV variables +export LD_LIBRARY_PATH=/path/to/oneMKL/buildWithCublas/lib:$LD_LIBRARY_PATH +export LIBRARY_PATH=/path/to/oneMKL/buildWithCublas/lib:$LIBRARY_PATH +export CPLUS_INCLUDE_DIR=/path/to/oneMKL/buildWithCublas/include:$CPLUS_INCLUDE_DIR +export CPLUS_INCLUDE_DIR=/path/to/oneMKL/include:$CPLUS_INCLUDE_DIR + +# Build LLAMA with Nvidia BLAS acceleration through SYCL + +# Option 1: Use FP32 (recommended for better performance in most cases) +cmake -B build -DGGML_SYCL=ON -DGGML_SYCL_TARGET=NVIDIA -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx + +# Option 2: Use FP16 +cmake -B build -DGGML_SYCL=ON -DGGML_SYCL_TARGET=NVIDIA -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DGGML_SYCL_F16=ON + +# build all binary +cmake --build build --config Release -j -v + +``` + +### III. Run the inference + +1. Retrieve and prepare model + +You can refer to the general [*Prepare and Quantize*](README.md#prepare-and-quantize) guide for model prepration, or simply download [llama-2-7b.Q4_0.gguf](https://huggingface.co/TheBloke/Llama-2-7B-GGUF/blob/main/llama-2-7b.Q4_0.gguf) model as example. + +2. Enable oneAPI running environment + +```sh +source /opt/intel/oneapi/setvars.sh +``` + +3. List devices information + +Similar to the native `sycl-ls`, available SYCL devices can be queried as follow: + +```sh +./build/bin/llama-ls-sycl-device +``` +This command will only display the selected backend that is supported by SYCL. The default backend is level_zero. For example, in a system with 2 *intel GPU* it would look like the following: +``` +found 2 SYCL devices: + +| | | |Compute |Max compute|Max work|Max sub| | +|ID| Device Type| Name|capability|units |group |group |Global mem size| +|--|------------------|---------------------------------------------|----------|-----------|--------|-------|---------------| +| 0|[level_zero:gpu:0]| Intel(R) Arc(TM) A770 Graphics| 1.3| 512| 1024| 32| 16225243136| +| 1|[level_zero:gpu:1]| Intel(R) UHD Graphics 770| 1.3| 32| 512| 32| 53651849216| +``` + + +4. Launch inference + +There are two device selection modes: + +- Single device: Use one device target specified by the user. +- Multiple devices: Automatically choose the devices with the same backend. + +In two device selection modes, the default SYCL backend is level_zero, you can choose other backend supported by SYCL by setting environment variable ONEAPI_DEVICE_SELECTOR. + +| Device selection | Parameter | +|------------------|----------------------------------------| +| Single device | --split-mode none --main-gpu DEVICE_ID | +| Multiple devices | --split-mode layer (default) | + +Examples: + +- Use device 0: + +```sh +ZES_ENABLE_SYSMAN=1 ./build/bin/llama-cli -m models/llama-2-7b.Q4_0.gguf -p "Building a website can be done in 10 simple steps:" -n 400 -e -ngl 33 -sm none -mg 0 +``` +or run by script: + +```sh +./examples/sycl/run_llama2.sh 0 +``` + +- Use multiple devices: + +```sh +ZES_ENABLE_SYSMAN=1 ./build/bin/llama-cli -m models/llama-2-7b.Q4_0.gguf -p "Building a website can be done in 10 simple steps:" -n 400 -e -ngl 33 -sm layer +``` + +Otherwise, you can run the script: + +```sh +./examples/sycl/run_llama2.sh +``` + +*Notes:* + +- Upon execution, verify the selected device(s) ID(s) in the output log, which can for instance be displayed as follow: + +```sh +detect 1 SYCL GPUs: [0] with top Max compute units:512 +``` +Or +```sh +use 1 SYCL GPUs: [0] with Max compute units:512 +``` + +## Windows + +### I. Setup Environment + +1. Install GPU driver + +Intel GPU drivers instructions guide and download page can be found here: [Get intel GPU Drivers](https://www.intel.com/content/www/us/en/products/docs/discrete-gpus/arc/software/drivers.html). + +2. Install Visual Studio + +If you already have a recent version of Microsoft Visual Studio, you can skip this step. Otherwise, please refer to the official download page for [Microsoft Visual Studio](https://visualstudio.microsoft.com/). + +3. Install Intel® oneAPI Base toolkit + +The base toolkit can be obtained from the official [Intel® oneAPI Base Toolkit](https://www.intel.com/content/www/us/en/developer/tools/oneapi/base-toolkit.html) page. + +Please follow the instructions for downloading and installing the Toolkit for Windows, and preferably keep the default installation values unchanged, notably the installation path *(`C:\Program Files (x86)\Intel\oneAPI` by default)*. + +Following guidelines/code snippets assume the default installation values. Otherwise, please make sure the necessary changes are reflected where applicable. + +b. Enable oneAPI running environment: + +- Type "oneAPI" in the search bar, then open the `Intel oneAPI command prompt for Intel 64 for Visual Studio 2022` App. + +- On the command prompt, enable the runtime environment with the following: +``` +"C:\Program Files (x86)\Intel\oneAPI\setvars.bat" intel64 +``` + +c. Verify installation + +In the oneAPI command line, run the following to print the available SYCL devices: + +``` +sycl-ls +``` + +There should be one or more *level-zero* GPU devices displayed as **[ext_oneapi_level_zero:gpu]**. Below is example of such output detecting an *intel Iris Xe* GPU as a Level-zero SYCL device: + +Output (example): +``` +[opencl:acc:0] Intel(R) FPGA Emulation Platform for OpenCL(TM), Intel(R) FPGA Emulation Device OpenCL 1.2 [2023.16.10.0.17_160000] +[opencl:cpu:1] Intel(R) OpenCL, 11th Gen Intel(R) Core(TM) i7-1185G7 @ 3.00GHz OpenCL 3.0 (Build 0) [2023.16.10.0.17_160000] +[opencl:gpu:2] Intel(R) OpenCL Graphics, Intel(R) Iris(R) Xe Graphics OpenCL 3.0 NEO [31.0.101.5186] +[ext_oneapi_level_zero:gpu:0] Intel(R) Level-Zero, Intel(R) Iris(R) Xe Graphics 1.3 [1.3.28044] +``` + +4. Install build tools + +a. Download & install cmake for Windows: https://cmake.org/download/ (CMake can also be installed from Visual Studio Installer) +b. The new Visual Studio will install Ninja as default. (If not, please install it manually: https://ninja-build.org/) + + +### II. Build llama.cpp + +On the oneAPI command line window, step into the llama.cpp main directory and run the following: + +``` +@call "C:\Program Files (x86)\Intel\oneAPI\setvars.bat" intel64 --force + +# Option 1: Use FP32 (recommended for better performance in most cases) +cmake -B build -G "Ninja" -DGGML_SYCL=ON -DCMAKE_C_COMPILER=cl -DCMAKE_CXX_COMPILER=icx -DCMAKE_BUILD_TYPE=Release + +# Option 2: Or FP16 +cmake -B build -G "Ninja" -DGGML_SYCL=ON -DCMAKE_C_COMPILER=cl -DCMAKE_CXX_COMPILER=icx -DCMAKE_BUILD_TYPE=Release -DGGML_SYCL_F16=ON + +cmake --build build --config Release -j +``` + +Otherwise, run the `win-build-sycl.bat` wrapper which encapsulates the former instructions: +```sh +.\examples\sycl\win-build-sycl.bat +``` + +Or, use CMake presets to build: +```sh +cmake --preset x64-windows-sycl-release +cmake --build build-x64-windows-sycl-release -j --target llama-cli + +cmake -DGGML_SYCL_F16=ON --preset x64-windows-sycl-release +cmake --build build-x64-windows-sycl-release -j --target llama-cli + +cmake --preset x64-windows-sycl-debug +cmake --build build-x64-windows-sycl-debug -j --target llama-cli +``` + +Or, you can use Visual Studio to open llama.cpp folder as a CMake project. Choose the sycl CMake presets (`x64-windows-sycl-release` or `x64-windows-sycl-debug`) before you compile the project. + +*Notes:* + +- In case of a minimal experimental setup, the user can build the inference executable only through `cmake --build build --config Release -j --target llama-cli`. + +### III. Run the inference + +1. Retrieve and prepare model + +You can refer to the general [*Prepare and Quantize*](README#prepare-and-quantize) guide for model prepration, or simply download [llama-2-7b.Q4_0.gguf](https://huggingface.co/TheBloke/Llama-2-7B-GGUF/blob/main/llama-2-7b.Q4_0.gguf) model as example. + +2. Enable oneAPI running environment + +On the oneAPI command line window, run the following and step into the llama.cpp directory: +``` +"C:\Program Files (x86)\Intel\oneAPI\setvars.bat" intel64 +``` + +3. List devices information + +Similar to the native `sycl-ls`, available SYCL devices can be queried as follow: + +``` +build\bin\ls-sycl-device.exe +``` + +This command will only display the selected backend that is supported by SYCL. The default backend is level_zero. For example, in a system with 2 *intel GPU* it would look like the following: +``` +found 2 SYCL devices: +| | | |Compute |Max compute|Max work|Max sub| | +|ID| Device Type| Name|capability|units |group |group |Global mem size| +|--|------------------|---------------------------------------------|----------|-----------|--------|-------|---------------| +| 0|[level_zero:gpu:0]| Intel(R) Arc(TM) A770 Graphics| 1.3| 512| 1024| 32| 16225243136| +| 1|[level_zero:gpu:1]| Intel(R) UHD Graphics 770| 1.3| 32| 512| 32| 53651849216| + +``` + + +4. Launch inference + +There are two device selection modes: + +- Single device: Use one device assigned by user. Default device id is 0. +- Multiple devices: Automatically choose the devices with the same backend. + +In two device selection modes, the default SYCL backend is level_zero, you can choose other backend supported by SYCL by setting environment variable ONEAPI_DEVICE_SELECTOR. + +| Device selection | Parameter | +|------------------|----------------------------------------| +| Single device | --split-mode none --main-gpu DEVICE_ID | +| Multiple devices | --split-mode layer (default) | + +Examples: + +- Use device 0: + +``` +build\bin\llama-cli.exe -m models\llama-2-7b.Q4_0.gguf -p "Building a website can be done in 10 simple steps:\nStep 1:" -n 400 -e -ngl 33 -s 0 -sm none -mg 0 +``` + +- Use multiple devices: + +``` +build\bin\llama-cli.exe -m models\llama-2-7b.Q4_0.gguf -p "Building a website can be done in 10 simple steps:\nStep 1:" -n 400 -e -ngl 33 -s 0 -sm layer +``` +Otherwise, run the following wrapper script: + +``` +.\examples\sycl\win-run-llama2.bat +``` + +Note: + +- Upon execution, verify the selected device(s) ID(s) in the output log, which can for instance be displayed as follow: + +```sh +detect 1 SYCL GPUs: [0] with top Max compute units:512 +``` +Or +```sh +use 1 SYCL GPUs: [0] with Max compute units:512 +``` + +## Environment Variable + +#### Build + +| Name | Value | Function | +|--------------------|-----------------------------------|---------------------------------------------| +| GGML_SYCL | ON (mandatory) | Enable build with SYCL code path. | +| GGML_SYCL_TARGET | INTEL *(default)* \| NVIDIA | Set the SYCL target device type. | +| GGML_SYCL_F16 | OFF *(default)* \|ON *(optional)* | Enable FP16 build with SYCL code path. | +| CMAKE_C_COMPILER | icx | Set *icx* compiler for SYCL code path. | +| CMAKE_CXX_COMPILER | icpx *(Linux)*, icx *(Windows)* | Set `icpx/icx` compiler for SYCL code path. | + +#### Runtime + +| Name | Value | Function | +|-------------------|------------------|---------------------------------------------------------------------------------------------------------------------------| +| GGML_SYCL_DEBUG | 0 (default) or 1 | Enable log function by macro: GGML_SYCL_DEBUG | +| ZES_ENABLE_SYSMAN | 0 (default) or 1 | Support to get free memory of GPU by sycl::aspect::ext_intel_free_memory.<br>Recommended to use when --split-mode = layer | + +## Known Issues + +- `Split-mode:[row]` is not supported. + +## Q&A + +- Error: `error while loading shared libraries: libsycl.so.7: cannot open shared object file: No such file or directory`. + + - Potential cause: Unavailable oneAPI installation or not set ENV variables. + - Solution: Install *oneAPI base toolkit* and enable its ENV through: `source /opt/intel/oneapi/setvars.sh`. + +- General compiler error: + + - Remove **build** folder or try a clean-build. + +- I can **not** see `[ext_oneapi_level_zero:gpu]` afer installing the GPU driver on Linux. + + Please double-check with `sudo sycl-ls`. + + If it's present in the list, please add video/render group to your user then **logout/login** or restart your system: + + ``` + sudo usermod -aG render $USER + sudo usermod -aG video $USER + ``` + Otherwise, please double-check the GPU driver installation steps. + +### **GitHub contribution**: +Please add the **[SYCL]** prefix/tag in issues/PRs titles to help the SYCL-team check/address them without delay. + +## TODO + +- Support row layer split for multiple card runs. |