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Description
Checklist
- I have searched for similar issues.
- For Python issues, I have tested with the latest development wheel.
- I have checked the release documentation and the latest documentation (for
masterbranch).
Describe the issue
If the function o3d.pipelines.registration.compute_fpfh_feature is excecuted inside a Process that is not the main one, it never exits the function. It works fine with Threads though.
[input]
from multiprocessing import Process
import open3d as o3d
o3d.utility.set_verbosity_level(o3d.utility.VerbosityLevel.Debug)
path = "any/pointcloud/file.pcd"
pcd = o3d.io.read_point_cloud(path)
def compute_fpfh(pcd):
print("start")
pcd_fpfh = o3d.pipelines.registration.compute_fpfh_feature(
pcd,
o3d.geometry.KDTreeSearchParamHybrid(radius=1, max_nn=100)
)
print("end")
return pcd_fpfh
[input]
compute_fpfh(pcd)
[output]
start
end
Feature class with dimension = 33 and num = 1000
Access its data via data member.
[input]
process = Process(
target=compute_fpfh,
args=(pcd,)
)
process.start()
process.join()
[output]
start
Steps to reproduce the bug
from multiprocessing import Process
import open3d as o3d
o3d.utility.set_verbosity_level(o3d.utility.VerbosityLevel.Debug)
path = "any/pointcloud/file.pcd"
pcd = o3d.io.read_point_cloud(path)
def compute_fpfh(pcd):
print("start")
pcd_fpfh = o3d.pipelines.registration.compute_fpfh_feature(
pcd,
o3d.geometry.KDTreeSearchParamHybrid(radius=1, max_nn=100)
)
print("end")
return pcd_fpfh
compute_fpfh(pcd)
process = Process(
target=compute_fpfh,
args=(pcd,)
)
process.start()
process.join()Error message
No response
Expected behavior
No response
Open3D, Python and System information
- Operating system: Ubuntu 20.04 (WSL)
- Python version: Python 3.8
- Open3D version: 0.16.1+1c84344a
- System architecture: x86
- Is this a remote workstation?: no
- How did you install Open3D?: build from source
- Compiler version (if built from source): ?Additional information
No response