Frequently Asked Questions (FAQ)¶

Q: Is there a limitation on the computational resources?
A: Based on the Grand Challenge documentation, there is a 16GB GPU memory limitation (NVIDIA-T4). Additionally, CPU time is limited to 2 hours. Note that we use a batch size of 1 for inference, which reduces the chance of encountering a CUDA Out of Memory (OOM) error.

Q: Is the limitation on the number of submissions applied to a team or participant?
A: It is applied to a team. One team can submit up to 10 times, with 1 submission each for the validation and test phases, respectively.

Q: I got an error saying "Algorithm failed on one or more cases." What is the reason?
A: Detailed logs are hidden from participants to prevent information leakage (e.g., printing image labels to access hidden test set information). To access the detailed log, please send an email to m.schuiveling@umcutrecht.nl. Before sending an email, ensure that you have performed and passed a local test as explained here.

Q: The Docker image is not getting activated.
A: This can happen if the Grand Challenge server is unstable. The issue is usually resolved by trying again after a few hours. If the problem persists, please send an email to support@grand-challenge.org.