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AR# 62156

2014.2 Vivado Placement - A case of non-deterministic behavior has been seen in the Vivado Placer.

Description

A case has been seen where identical runs of the Vivado Placer resulted in different results.

A comparison of the Checksum values showed that the runs diverged at Placement Phase 5.2.1.1:
 

Phase 5.2.1.1 Restore Best Placement
Phase 5.2.1.1 Restore Best Placement | Checksum: 11f4dbc33

Solution

This problem has been fixed in the 2014.3 release.

A patch is available for Vivado 2014.2.

To obtain the patch, open a webcase and refer to this Answer Record.
AR# 62156
Date Created 09/23/2014
Last Updated 10/08/2014
Status Active
Type General Article
Devices
  • Artix-7
  • Kintex-7
  • Virtex-7
Tools
  • Vivado Design Suite - 2014.2