System.OutOfMemoryException

[irleader]

">> Error: Exception of type 'System.OutOfMemoryException' was thrown.
--> Stacktrace:
| System.Text.StringBuilder.ToString()
| HtmlGenerator.XmlBuilder1.ToString() | HtmlGenerator.XmlBuilder1.AddT
╷ Stitch.HTMLReport.CreateAndSaveAside(AsideType, Int32, Int32, Int32)
╰─ D:\a\stitch\stitch\stitch\Reporting\HTMLReport\Report.cs:line 111

Error: One or more errors occurred. (Exception raised in creation of aside. See above message for more details.)
--> Stacktrace:
| System.Threading.Tasks.TaskReplicator.RunTState
| System.Threading.Tasks.Parallel.ForWorkerTLocal
--> End of stacktrace from previous location.
| System.Threading.Tasks.Parallel.ThrowSingleCancellationExceptionOrOtherException(...)
| System.Threading.Tasks.Parallel.ForWorkerTLocal
| System.Threading.Tasks.Parallel.ForEachWorkerTSource,TLocal
╷ Stitch.HTMLReport.CreateAsides()
╰─ D:\a\stitch\stitch\stitch\Reporting\HTMLReport\Report.cs:line 33
╷ Stitch.HTMLReport.Save(String)
╰─ D:\a\stitch\stitch\stitch\Reporting\HTMLReport\Report.cs:line 675
Please include this entire error if you open a bug report.
Stitch version: 1.5.0+d17c6b6"

I have 128GB physical memory, and even more virtual memory. I have been monitoring the memory usage, it seems there is no memory leakage.

[douweschulte]

The out of memory exception is ultimately caused by the allocator of C# which has a limit of 2 GB (from the top of my head) for any one single allocation. This means that no single page generated by Stitch can be above this limit. The only way to circumvent this issue is to massage the program until the files are within the limit. Some of the drastic options that can help are the number of input data files, the cutoffscore for placement of the peptides. Something less drastic (less likely to remove data that you are interested in) is turning up the ambiguous threshold (to 1), but this might not change enough to make it work.