Assertion `xl1 < xl2 && xh1 < xh2' failed: node 8 (nan, nan, nan, nan) overlaps with node 40 (nan, nan, nan, nan)

[Kash6]

I'm running the benchmarks from the ispd 2015 dataset using the command:
python dreamplace/Placer.py ../test/ispd2015/lefdef/mgc_superblue11_a.json

And I get the following error right after the legality check:
/home/eleven/projects/DREAMPlace/dreamplace/ops/abacus_legalize/../abacus_legalize/src/abacus_legalize_cpu.h:96: void DreamPlace::sortNodesInRow(const T*, const T*, const T*, const T*, int, std::vector<int, std::allocator >&) [with T = float]: Assertion `xl1 < xl2 && xh1 < xh2' failed: node 8 (nan, nan, nan, nan) overlaps with node 40 (nan, nan, nan, nan)
Aborted (core dumped)

I haven't modified anything and I'm running it on torch 1.10.2+cu113.

[limbo018]

It works fine on my side. Here's the log.

[INFO   ] Greedy legalization takes 2975.9 ms
[INFO   ] Legality check takes 81.7796 ms
[DEBUG  ] average displace = 10.6866
[INFO   ] Abacus legalization takes 28.9314 ms
[DEBUG  ] average displace = 8.22345
[INFO   ] Abacus legalization takes 27.9994 ms
[DEBUG  ] average displace = 41.4481
[INFO   ] Abacus legalization takes 29.2102 ms
[DEBUG  ] average displace = 10.9823
[INFO   ] Abacus legalization takes 27.8204 ms
[DEBUG  ] average displace = 7.63178
[INFO   ] Abacus legalization takes 171.506 ms
[INFO   ] DREAMPlace - legalization takes 5.713 seconds
[INFO   ] DREAMPlace - iteration  961, wHPWL 3.606356E+08, time 0.355ms

I saw nan in your log. What is the earliest place it appears? Could you check your GPU card? Old GPU may not be supported. You can also try running on CPU to see whether it works.