Comments (1)
Hi, thank you for your very detailed reports! I think you may be trying to allocate too much GPU memory, which is causing things to fail (although why no error was reported is a mystery, since the error codes are definitely checked in OSKAR). Unfortunately OpenCL also has a concept of a maximum allocation size, which is often a quarter of the global memory size - although this may or may not be enforced, depending on the device and the driver.
The reason I suspect a problem with the memory usage here is because the value you have set for max_sources_per_chunk
is very large (1004288), and arrays will be allocated on the GPU using this value multiplied by the number of stations (512 in this case) and the Jones matrix element size (8 bytes in this case with single precision, although it could be up to 64 bytes in double precision with full polarisation. Double precision may be needed if you're using long baselines).
There is no advantage in setting max_sources_per_chunk
to be larger than the sky model, and it should rarely be set to anything larger than about 100000, but it's a tunable parameter to allow runs to be optimised for different systems. Perhaps try reducing this value to (for example) 65536 and see if you get better results.
from oskar.
Related Issues (20)
- Unit Tests failing after successful installation of latest version HOT 5
- Add station metadata to Measurement Set HOT 3
- Images in angular coordinates HOT 7
- Simulation input not taking two separate sky inputs HOT 9
- Spectral variation across input image cube HOT 1
- Normalise beam at phase does not work for oskarpy HOT 1
- Query regarding Station Beams
- Core dump on imager with w-proj algorithm while converting HOT 1
- CUDA versions HOT 2
- W-kernel from the imager HOT 1
- OpenCL GPU failed on M1 Macs HOT 5
- Try to port the project to ROCm HOT 3
- RuntimeError("OSKAR library not found.") HOT 3
- ERROR: Run failed with code 209: no kernel image is available for execution on the device HOT 2
- Import custom beams into fit_element / format of the cst files HOT 2
- Writing data into a Measurement Set HOT 2
- Running the code with one station giving error
- Beam Pointing in "Aperture Array" Station type
- Addition of custom telescope name
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from oskar.