# On-Premises When running on-premises, Workbench integrates [Cromwell](https://github.com/broadinstitute/cromwell) execution engine with [DNAstack's WES service](https://github.com/DNAstack/cromwell-wes-service). This combination enables workflow execution on your infrastructure, whether local servers or cloud providers. The WES service supports all standard Cromwell parameters, documented in the [Cromwell documentation](https://cromwell.readthedocs.io/en/stable/wf_options/Overview/#workflow-options-overview). Additionally, it standardizes the `DELETE_INTERMEDIATE_OUTPUT_FILES` parameter across all supported infrastructure types, allowing consistent intermediate file cleanup when running workflows through [Workbench](https://github.com/DNAstack/dnastack-product-docs/blob/main/docs/workbench/engines/parameters/broken-reference/README.md). ## Available Parameters ### `delete_intermediate_output_files`=`BOOLEAN` Specifies whether to delete intermediate output files. Default is false. If set to true, any File variables referenced in task output sections that are not found in the workflow output section will be considered an intermediate File. Additionally, log files will not be deleted. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.omics.ai/products/workbench/engines/parameters/on-premises.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.