libccl.so.1.0 size is so large

[hli25]

Following the readme, I built out libccl.so.1.0 from master branch, but the lib is so big about 300M. While in oneAPI BaseKit, this lib is ~9M.
Any suggustion?

[hli25]

btw, oneapi is 2024.0

[nikitaxgusev]

@hli25 hello, can you post the build command to reproduce your issue, please?

[hli25]

@hli25 hello, can you post the build command to reproduce your issue, please?
Thanks!
here are the commands:

1. cmake .. -GNinja -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DCMAKE_CXX_FLAGS="-fsycl" -DCOMPUTE_BACKEND=dpcpp
2. ninja
   Same issue when following INSTALL.md to build the lib.

btw, i reproduced it with commit b258db4

[nikitaxgusev]

Hello @hli25 ,

my steps were:

git clone https://github.com/oneapi-src/oneCCL.git
mkdir build
cd ./build
cmake .. -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DCOMPUTE_BACKEND=dpcpp && make -j && make install
du -h ./_install/lib/libccl.so.1.0

So, what I see:

• for 2021.12 branch: 17 Mb
  17M ./_install/lib/libccl.so.1.0

• for 2021.13 branch: 48 Mb
  48M ./_install/lib/libccl.so.1.0

I couldn't reproduce your 300 Mb.

But I've noticed, you use -DCMAKE_CXX_FLAGS="-fsycl", is there any reason to do that?
cmake .. -GNinja -DCMAKE_C_COMPILER=icx -DCMAKE_CXX_COMPILER=icpx -DCMAKE_CXX_FLAGS="-fsycl" -DCOMPUTE_BACKEND=dpcpp
All the same, I had a chance to compile with your provided command and I couldn't reproduce the issue.

du -h ./_install/lib/libccl.so.1.0 with your command.
17M ./_install/lib/libccl.so.1.0

[hli25]

hi @nikitaxgusev,
Thanks for your update!

Which oneapi did you use, 2024.0 or 2024.1 ?
With oneapi 2024.1, i could get similar resuls as yours. However, this is very differnet if you compile it via oneapi 2024.0.