KOCL is a general purpose framework for accelerating Linux kernel software with OpenCL accelerators, which is built by migrating the KGPU code to the OpenCL platforms.We further added the zero-copy scheme and the support of multiple devices for concurrent processing in KOCL to take advantage of the OpenCL standard.
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We develop KOCL on Ubuntu 16.04 with Linux kernel 4.7, OpenCL 2.0 for Intel Platform and OpenCL 1.2 for Nvidia Platform. In hardware, we use Intel i7-6700 CPU, Intel HD 530 GPU, Nvidia GTX 1080 Ti GPU and with 16GB system ram.
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If you want to extend the platforms or devices, you should modify the
main.c helper.c and gpuops.cfile to fit your system. -
The default pinned memory size is 128MB, you can adjust the size in
kocl.h KOCL_BUF_SIZE. -
Test the kocl,
make
cd build/
sudo insmod kocl.ko
sudo insmod gaes_ecb.ko channel=1
sudo ./helper -l `pwd`
/*Benchmark jhash*/
sudo insmod callgpu_async_jhash.ko channel=1
/*Benchmark gaes*/
sudo insmod testskcipher.ko
- Test ecryptfs,
mkdir ~/crypt
cd gaes/ecryptfs_4.7_kocl/
sudo insmod ecryptfs.ko
sudo mount -t ecryptfs ~/crypt ~/crypt
sudo dd if=/dev/zero of=~/crypt/test1 bs=32M count=1
sudo umount ~/crypt
/*Remove kocl*/
sudo rmmod ecryptfs
sudo rmmod gaes_ecb
sudo rmmod kocl
Note: channel represent the target device you want to use.
TeSheng Lin, <dslin1010@gmail.com>
National Cheng Kung University of Taiwan and the ASRLab.