For WDL questions, see the WDL specification and WDL docs.
For Cromwell questions, see the Cromwell docs and please post any issues on Github.
Avoid copying input files
I noticed while testing my .wdl script that input files are copied into the respectively generated cromwell-execution subfolder. However, I expect in my actual analyses that the input files may be huge (several gigabytes per file, many files). Is there a way to avoid copying the files?