Cannot run "clipdraw" drawer

Hi, I could successfully run pixray on colab (pro version). However, when I tried to change the drawer style to "clipdraw" I ran into some error message:

/usr/local/lib/python3.7/dist-packages/diffvg-0.0.1-py3.7-linux-x86_64.egg/pydiffvg/render_pytorch.py in backward(ctx, grad_img)
    707                       use_prefiltering,
    708                       diffvg.float_ptr(eval_positions.data_ptr()),
--> 709                       eval_positions.shape[0])
    710         time_elapsed = time.time() - start
    711         global print_timing

RuntimeError: radix_sort: failed on 1st step: cudaErrorInvalidDevice: invalid device ordinal

It may be related to the memory, however, I was using a P100 GPU:

+-----------------------------------------------------------------------------+
| NVIDIA-SMI 495.44       Driver Version: 460.32.03    CUDA Version: 11.2     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  Tesla P100-PCIE...  Off  | 00000000:00:04.0 Off |                    0 |
| N/A   37C    P0    37W / 250W |      0MiB / 16280MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

I used the following code to install pytorch:

%%capture
# this patch applied to fix torchtext dependency 11 Nov 2021
!pip install torch==1.9.0+cu111 torchtext==0.10.0 torchvision==0.10.0+cu111 -f https://download.pytorch.org/whl/torch/ -f https://download.pytorch.org/whl/torchvision/

!git clone https://github.com/openai/CLIP
# !pip install taming-transformers
!git clone https://github.com/CompVis/taming-transformers.git
!rm -Rf pixray
!git clone https://github.com/dribnet/pixray
!pip install ftfy regex tqdm omegaconf pytorch-lightning
!pip install kornia==0.6.1
!pip install imageio-ffmpeg   
!pip install einops
!pip install torch-optimizer
!pip install easydict
!pip install braceexpand
!pip install git+https://github.com/pvigier/perlin-numpy
!mkdir -p steps
!mkdir -p models

!pip install svgwrite
!pip install svgpathtools
!pip install cssutils
!pip install numba
!pip install torch-tools
!pip install visdom
!pip install gradio==2.3.7

!git clone https://github.com/BachiLi/diffvg
%cd diffvg
# !ls
!git submodule update --init --recursive
!python setup.py install
%cd ..

!pip install aphantasia

import sys
sys.path.append("pixray")

dribnet / pixray

Cannot run "clipdraw" drawer #50