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AR# 64425

2015.1 PhysOpt_Design - High fanout nets are not optimized by PhysOpt_Design

Description

PhysOpt_Design can fail to optimize some high fanout nets even though the -force_replication_on_nets feature is being used to target them:

INFO: [Physopt 32-571] Net i_bd_top/Lane0/PR_Region/otn_tcaui4_top_0/inst/U_0/i_HSEC_CORES/i_RX_TOP/i_RX_CORE/i_SRESETN/sresetn was not replicated.

Solution

A Vivado 2015.1 patch is available to correct this issue so that the replication occurs.

The patch file is too large to attach here but can be obtained by opening a webcase and requesting an EZMove transfer.
AR# 64425
Date Created 04/30/2015
Last Updated 05/22/2015
Status Active
Type General Article
Devices
  • Virtex UltraScale
Tools
  • Vivado Design Suite - 2015.1
  • Vivado Design Suite - 2014.4.1
  • Vivado Design Suite - 2014.4