ModelSim-Altera Simulation of IP Compiler for PCI Express is Slow - ModelSim-Altera Simulation of IP Compiler for PCI Express is Slow Description Simulation that uses the PCI Express BFM, or simulation of an IP Compiler for PCI Express variation that targets a Stratix IV GX or Arria II GX device, is slow in the ModelSim-Altera simulator. This issue affects simulation of all IP Compiler for PCI Express variations when the simulator runs the PCI Express BFM, and simulations of variations that target a Stratix IV GX device that do not run the BFM. Resolution This issue has no workaround. You can use a different simulator to simulate your design. This issue will be fixed in a future version of the IP Compiler for PCI Express. Custom Fields values: ['novalue'] Troubleshooting novalue True ['Simulation'] ['FPGA Dev Tools Quartus II Software'] novalue 11.0 ['Arria® II FPGAs', 'Arria® II GX FPGA', 'Stratix® IV FPGAs'] ['novalue'] ['novalue'] ['novalue'] - 2021-08-25