AR# 5169: 2.1i Design Manager - MPPR does not create revision directories; revisions don't appear in DM's view
AR# 5169
2.1i Design Manager - MPPR does not create revision directories; revisions don't appear in DM's view
Description
Keywords: MPPR, Multi-Pass Place and Route, revisions, 1.4, 1.5, 1.5i
Urgency: Standard
General Description:
After running MPPR, the revision directories containing the .ncd, .dly and .par files from saved passes are not written.
Solution
This is very likely a network communication problem. This has been seen when the software is run across multiple networks, especially where the saved results are written to a network drive of a server other than where the software is being run, or there is an extremely long path.
Results from a MPPR run are stored in the temp directory p1.dir (or p2.dir for mppr run 2). This directory contains all ncd, par, and dly files for the run (only ncd files for the saved runs). After implementation, when the FPGA Multi-Pas Place and Route Status box appears stating MPPR is finished, and ok is clicked, the DM is supposed to create rev directories for each saved pass and write these files to the appropriate directory, then delete the p1.dir directory. What occurs is that this cleanup is only partially completed due to the network communication problem; the p1.dir directory exists with all the files (perhaps one or more of the revision directories has been created and saved).
The following workarounds can be used:
1) Install and run the software locally
2) Run from the command line, passing the project.ncd file as an argument to the desired program (PAR, Bitgen, or Trace).
3) When the problem occurs, create new revisions from DM (Design _> New revision), copy all the files for each MPPR rev into the appropriate directory from the p1.dir directory, start the Flow Engine and set Setup -> Advanced to Routed, and then do timing analysis, bitgen, or re-entrant routing from there.