On 10/11/14 08:14, D. Jeff Dionne wrote:
On 08/11/14 13:41, Adrien Prost-Boucle wrote:
Hi,
With at least the versions 0.31 and 0.32 of GHDL, I have some VHDL
designs for which simulation is extremely slow. By "extremely", I mean 1
cycle per minute. The same VHDL code is simulated at at least 1000
cycles/s with Xilinx's simulator.
Hi,
We are using GHDL for a validation of a large SoC project. On version
0.31, we are experiencing a slowdown of about 570 times(!). It takes
over 7hrs to simulate 200uS of simulator time. The same simulation
results are generated.
Hello,
hard to tell without investigation. Here are three ideas:
* If you can rebuild ghdl, try the 0.32rc version from the repository
maybe this has been fixed.
* Try to profile for 1min and report hot functions
* Send your design (or a reproducer) to me.
Regards,
Tristan.
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