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License: Other
High-fidelity performance metrics for generative models in PyTorch
License: Other
Hello, we have implemented a metric based on the latest version of this package but PyPPI has the last 0.3.0
and PyPI does not allow any dependency outside their registry so when we refer master no user could use it... Would it be possible to make a release any time soon? Thank you
cc: @SkafteNicki
Hello, I think the following implementation of the Fréchet distance is faster than the current one and would allow to drop the scipy
dependency.
def frechet_distance(mu_x: Tensor, sigma_x: Tensor, mu_y: Tensor, sigma_y: Tensor) -> Tensor:
a = (mu_x - mu_y).square().sum(dim=-1)
b = sigma_x.trace() + sigma_y.trace()
c = torch.linalg.eigvals(sigma_x @ sigma_y).sqrt().real.sum(dim=-1)
return a + b - 2 * c
The implementation is based on two facts:
hi,
The Gated CRF loss is a interesting work,I except your work code,i am working in weak-segmentation,and see your paper,i hope communicate with you about this,my email:[email protected], Excepting your reply
Was the reproducibility of these new metrics checked with the official repo's results? I tested with my mode-collapsed generative model that produces nearly the same images as below:
and got these results:
inception_score_mean: 1.12824
inception_score_std: 0.0006825597
kernel_inception_distance_mean: 0.239309
kernel_inception_distance_std: 0.002847237
precision: 4e-05
recall: 0.99084
f_score: 7.999677e-05
We can see that precision is nearly zero and recall is close to 1. Recall is supposed to measure the diversity of generated samples; it should be close to zero in this case. Also, it seems that the car lies on the true data manifold, meaning that precision should be close to one. Results seem to be flipped.
I used 50000 generated samples. This is the command I used:
fidelity --prc --isc --kid --input1 ${dir}/${iteration}-50k/samples --input2 cifar10-train --gpu 0 | tee ${dir}/${iteration}-50k/fidelity.txt
Hello, this project of yours is very helpful for my work. I would like to ask, isn't the calculation of FID calculated ten times and then take the mean and standard deviation? (like calculating KID), can you modify it?
As stated in the paper https://arxiv.org/pdf/2103.03841v1.pdf the computation of sFID metric requires the extraction of the first 7 channels from mixed6/conv feature map. Currently the repo does not provide it. What about adding this feature? It could be then exploited inside torchmetrics package.
Hi,
I also calculate the FID , KID and LPIPS scores between pair images (predictions and GTs), and I am comparing two networks, but the results show the model that has a lower LPIPS value but higher FID and KID scores at the same time.
So I wanna know is this what you say hard to interpret? What may be the reason for this phenomenon? Could it be a lack of diversity since the higher similarity?
I will very appreciate if you could help me.
$ wget https://files.pythonhosted.org/packages/source/t/torch-fidelity/torch_fidelity-0.3.0.tar.gz
...
$ tar vtaf torch_fidelity-0.3.0.tar.gz|grep requirements.txt
$ tar vtaf torch_fidelity-0.3.0.tar.gz
drwxr-xr-x anton/staff 0 2021-06-15 22:53 torch_fidelity-0.3.0/
-rw-r--r-- anton/staff 554 2021-06-12 00:54 torch_fidelity-0.3.0/LICENSE.md
-rw-r--r-- anton/staff 1828 2021-06-15 22:53 torch_fidelity-0.3.0/PKG-INFO
-rw------- anton/staff 6501 2021-06-15 22:46 torch_fidelity-0.3.0/README.md
-rw-r--r-- anton/staff 38 2021-06-15 22:53 torch_fidelity-0.3.0/setup.cfg
-rw-r--r-- anton/staff 2440 2021-06-12 00:54 torch_fidelity-0.3.0/setup.py
drwxr-xr-x anton/staff 0 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity/
-rw-r--r-- anton/staff 1094 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/__init__.py
-rw-r--r-- anton/staff 2007 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/datasets.py
-rw-r--r-- anton/staff 1460 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/defaults.py
-rw-r--r-- anton/staff 2243 2021-06-14 18:32 torch_fidelity-0.3.0/torch_fidelity/feature_extractor_base.py
-rw-r--r-- anton/staff 16856 2021-06-14 20:17 torch_fidelity-0.3.0/torch_fidelity/feature_extractor_inceptionv3.py
-rw-r--r-- anton/staff 12071 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/fidelity.py
-rw-r--r-- anton/staff 892 2021-06-14 18:17 torch_fidelity-0.3.0/torch_fidelity/generative_model_base.py
-rw-r--r-- anton/staff 2663 2021-06-14 18:33 torch_fidelity-0.3.0/torch_fidelity/generative_model_modulewrapper.py
-rw-r--r-- anton/staff 4005 2021-06-14 20:33 torch_fidelity-0.3.0/torch_fidelity/generative_model_onnx.py
-rw------- anton/staff 523 2020-12-29 19:23 torch_fidelity-0.3.0/torch_fidelity/helpers.py
-rw-r--r-- anton/staff 6370 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/interpolate_compat_tensorflow.py
-rw-r--r-- anton/staff 5038 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/metric_fid.py
-rw-r--r-- anton/staff 2206 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/metric_isc.py
-rw-r--r-- anton/staff 5004 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/metric_kid.py
-rw-r--r-- anton/staff 6033 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/metric_ppl.py
-rw------- anton/staff 13752 2021-06-14 20:39 torch_fidelity-0.3.0/torch_fidelity/metrics.py
-rw-r--r-- anton/staff 1403 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/noise.py
-rw------- anton/staff 6797 2021-06-14 20:18 torch_fidelity-0.3.0/torch_fidelity/registry.py
-rw-r--r-- anton/staff 798 2021-06-14 20:17 torch_fidelity-0.3.0/torch_fidelity/sample_similarity_base.py
-rw-r--r-- anton/staff 7415 2021-06-14 20:17 torch_fidelity-0.3.0/torch_fidelity/sample_similarity_lpips.py
-rw-r--r-- anton/staff 15367 2021-06-12 00:54 torch_fidelity-0.3.0/torch_fidelity/utils.py
-rw-r--r-- anton/staff 22 2021-06-15 22:23 torch_fidelity-0.3.0/torch_fidelity/version.py
drwxr-xr-x anton/staff 0 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/
-rw-r--r-- anton/staff 1828 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/PKG-INFO
-rw-r--r-- anton/staff 985 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/SOURCES.txt
-rw-r--r-- anton/staff 1 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/dependency_links.txt
-rw-r--r-- anton/staff 59 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/entry_points.txt
-rw-r--r-- anton/staff 42 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/requires.txt
-rw-r--r-- anton/staff 15 2021-06-15 22:53 torch_fidelity-0.3.0/torch_fidelity.egg-info/top_level.txt
No requirements.txt
. However, https://github.com/toshas/torch-fidelity/blob/master/setup.py#L10
with open('requirements.txt') as f:
It will make this program broken when it is installing.
Script to reproduce
import torch
from torch.utils.data import Dataset
from torch_fidelity import calculate_metrics
img1 = torch.randint(0, 255, (5, 3, 299, 299), dtype=torch.uint8)
img2 = torch.randint(0, 255, (5, 3, 299, 299), dtype=torch.uint8)
class _ImgDataset(Dataset):
def __init__(self, imgs):
self.imgs = imgs
def __getitem__(self, idx):
return self.imgs[idx]
def __len__(self):
return self.imgs.shape[0]
def main(feature_size):
torch_fid = calculate_metrics(
_ImgDataset(img1),
_ImgDataset(img2),
fid=True,
feature_layer_fid=feature_size
)
print(torch_fid)
if __name__ == "__main__":
main("64") # fails
main("192") # fails
main("768") # fails
main("2048") # succeeds
will fail with the following assert:
it seems that the shape of the calculated features when feature_layer_fid!=2048
are not 2D but instead:
[N, feature_size, 1, 1]
it should be simple to fix by introducing a feature.squeeze()
somewhere appropriately.
I read everywhere trying to figure out how my datasets should output an image (i.e. which transforms to use). There is nowhere in the docs. As far I found in the code, it seems to be a torch uint8 tensor of the shape (C, H, W):
register_dataset(
'cifar10-train',
lambda root, download: Cifar10_RGB(root, train=True, transform=TransformPILtoRGBTensor(), download=download)
)
class TransformPILtoRGBTensor:
def __call__(self, img):
vassert(type(img) is Image.Image, 'Input is not a PIL.Image')
width, height = img.size
img = torch.ByteTensor(torch.ByteStorage.from_buffer(img.tobytes())).view(height, width, 3)
img = img.permute(2, 0, 1)
return img
Is that it? The metrics expects torch uint8 tensors? What about sizes? What size of images the dataset should output? The same size as the generator?
Thanks
Hi,
when trying to calculate the FID score for images between two directories as inputs, the following error is given:
AssertionError: Imaginary component 2.0889527537971523e+111
I tried fixes from other implementations of FID, but increasing the dataset size to be over 2048 and different scipy versions are not a fix for me.
Is there any clue what else might be causing this?
Hi! Thanks for the package. While it looks exactly like what we need, we couldn't get it to work.
In our training loop, we call torch_fidelity.calculate_metrics
as follows with two TensorDatasets made on the fly. We have verified their contents to be be torch.uint8 images, however we get the assertion error that the input is not torch.uint8. Investigating a little more, the cause seems to be that the input is a list instead.
# in training loop
tensors1 = ... # image from network, already on GPU
tensors2 = ... # image from network, already on GPU
imgs1 = tensor_to_image(tensors1) # changes BCWH to BWHC and converts to uint8
imgs2 = tensor_to_image(tensors2)
dataset1 = TensorDataset(imgs1)
dataset2 = TensorDataset(imgs2)
frechet = torch_fidelity.calculate_metrics(dataset1, dataset2, cuda=False, fid=True, save_cpu_ram=True)
Which results in:
File "/opt/conda/lib/python3.7/site-packages/torch_fidelity/feature_extractor_inceptionv3.py", line 81, in forward
vassert(torch.is_tensor(x) and x.dtype == torch.uint8, 'Expecting image as torch.Tensor with dtype=torch.uint8')
File "/opt/conda/lib/python3.7/site-packages/torch_fidelity/helpers.py", line 9, in vassert
raise ValueError(message)
ValueError: Expecting image as torch.Tensor with dtype=torch.uint8
Investigating, I found that it isn't x.dtype == torch.uint8
which fails, but torch.is_tensor(x)
. When dataset1 and dataset2 are created their inputs are all tensors, but somewhere within calculate_metrics
these incorrectly get converted to lists.
What's going wrong here and how can we fix this?
As mentionned in this issue Lightning-AI/torchmetrics#1620, the inception network seems to suffer from different results depending from the batch_size
Something i tried that seems to solve this issue is to run the network in float64
This batch independence seems to have considerable differences in FIDs as mentionned in Lightning-AI/torchmetrics#1620 the batch bias in FID seems to be higher from small batch-sizes. If we compute FID between 2 uniformly sampled distributions with a 1000 points each, if we compute it with a batch size of 1000, we get FID 1.9 but if we compute it with batch-size=2, then the FID is 10. Since we sample from the same distribution, FID should be as close too zero as possible.
Possible Fix
inception = inception.to(torch.float64)
imgs = imgs.to(torch.float64)
inception(imgs)
Hi I am so happy to get your sharing valuable source code to calculate the metrics I do appreciate it and I am currently facing this bug when I train with my custom generated images. May I know how I should solve it? Please help me where should I need to change. Thank you so much.
Just want to use it to test the evaluation code.
Afaik, the current SOTA of cifar10 is around 3.
Hi,
I have some problems when using 'calculate_metrics' to calculate FID and KID, and I hope to get your help.
Q: I only have 200 groups of images (each containing gt.png and out.png), how do I call calculate_metrics?
How to change the input in calculate_metrics(input1, input2,kid=True)
?
Thank you.
I do not have CUDA installed since I am running an Apple imac. However, I use Google Colab for most machine learning experiments. I started a new notebook with pip install torch-fidelity, which worked fine and received:
.....
Installing collected packages: torch-fidelity
Successfully installed torch-fidelity-0.3.0
However, I don't know where the bin "fidelity" is installed in Colab space. I looked in user/local/bin and it was not there. Same issue with /usr/bin. In the notebook, "whereis fidelity" or "type -a fidelity" are not yielding anything. I also tried accessing fidelity directly from python code in the readme.md
Any suggestions to move forward on this?
Traceback (most recent call last):
File "/cluster/home/alugmayr/.local/bin/fidelity", line 8, in <module>
sys.exit(main())
File "/cluster/home/alugmayr/.local/lib/python3.8/site-packages/torch_fidelity/fidelity.py", line 98, in main
metrics = calculate_metrics(args.input1, input_2=args.input2, **vars(args))
File "/cluster/home/alugmayr/.local/lib/python3.8/site-packages/torch_fidelity/metrics.py", line 145, in calculate_metrics
metric_kid = kid_featuresdict_to_metric(featuresdict_1, featuresdict_2, feature_layer_kid, **kwargs)
File "/cluster/home/alugmayr/.local/lib/python3.8/site-packages/torch_fidelity/metric_kid.py", line 113, in kid_featuresdict_to_metric
metric = kid_features_to_metric(features_1, features_2, **kwargs)
File "/cluster/home/alugmayr/.local/lib/python3.8/site-packages/torch_fidelity/metric_kid.py", line 91, in kid_features_to_metric
f1 = features_1[rng.choice(len(features_1), kid_subset_size, replace=False)]
File "mtrand.pyx", line 954, in numpy.random.mtrand.RandomState.choice
ValueError: Cannot take a larger sample than population when 'replace=False'
How to convert that?
Hi,
Thank you for your work
While running fidelity --gpu 0 --isc --input1 ~/images/
I got following error:
ValueError: Input descriptor "input" field can be either an instance of Dataset, GenerativeModelBase class, or a string, such as a path to a name of a registered dataset (cifar10-train, cifar10-val, stl10-train, stl10-test, stl10-unlabeled), a directory with file samples, or a path to an ONNX or PTH (JIT) module
Could you help me to solve this issue, please?
Thank you
Thank you for sharing the implementation of the FID and IS scores.
I wanted to use the code to find the metrics for the samples generated by a GAN model trained on the CelebA dataset as well as the dataset with transformations (custom version of CelebA dataset), thereby I thought of using input1
and input2
. However when I use the command
fidelity --gpu 0 --fid --input1 /images/sample_dir/ --input2 /images/CelebA_DATASET
ValueError: Input descriptor "input" field can be either an instance of Dataset, GenerativeModelBase class, or a string, such as a path to a name of a registered dataset (cifar10-train, cifar10-val, stl10-train, stl10-test, stl10-unlabeled), a directory with file samples, or a path to an ONNX or PTH (JIT) module
I request you to guide me in this regard.
Kind regards
Prabhav
Hello.
Thanks for the awesome repo. When is the PRC branch going to be merged to main? Is it going to happen anytime soon?
Hello @toshas @mikeogezi @voletiv
Thank you so much for the amazing work.
I am working with unconditional image generation provided by hugging face diffusers. https://github.com/huggingface/diffusers/blob/main/examples/unconditional_image_generation/train_unconditional.py
Here how can I integrate torch fidelity API. It requires generator, so in case of hugging face diffusers, should I pass accelerator as there is no generator present. Can you please guide me?
wrapped_generator = torch_fidelity.GenerativeModelModuleWrapper(generator, 128, 'normal', 0)
Should I write the code like below?
unet = accelerator.unwrap_model(model)
pipeline = DDPMPipeline(
unet=unet,
scheduler=noise_scheduler,)
generator = torch.Generator(device=pipeline.device).manual_seed(0)
Thank you :)
Hi,
Thanks for your great work!
When trying to run a very simple example (code pasted below):
# -*- coding: utf-8 -*-
"""
Created on Fri Feb 4 13:18:44 2022
@author: User
"""
import torch_fidelity
path1 = r'/home/rsmalbraak/data/TRAIN_3classes_nofolder'
path2 = r'/home/rsmalbraak/data/Generated_3dlayer_decay_nofolder'
metrics_dict = torch_fidelity.calculate_metrics(
input1=path1,
input2=path2,
cuda=True,
isc=True,
fid=True,
kid=False,
verbose=False,
ppl_sample_similarity_resize=64,
)
print(metrics_dict)
I get the following error message:
Traceback (most recent call last):
File "/home/rsmalbraak/FID_IS.py", line 40, in <module>
metrics_dict = torch_fidelity.calculate_metrics(
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch_fidelity/metrics.py", line 239, in calculate_metrics
featuresdict_1 = extract_featuresdict_from_input_id_cached(1, feat_extractor, **kwargs)
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch_fidelity/utils.py", line 372, in extract_featuresdict_from_input_id_cached
featuresdict = fn_recompute()
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch_fidelity/utils.py", line 360, in fn_recompute
return extract_featuresdict_from_input_id(input_id, feat_extractor, **kwargs)
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch_fidelity/utils.py", line 345, in extract_featuresdict_from_input_id
featuresdict = get_featuresdict_from_dataset(input, feat_extractor, batch_size, cuda, save_cpu_ram, verbose)
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch_fidelity/utils.py", line 111, in get_featuresdict_from_dataset
for bid, batch in enumerate(dataloader):
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 521, in __next__
data = self._next_data()
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 1203, in _next_data
return self._process_data(data)
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 1229, in _process_data
data.reraise()
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/_utils.py", line 434, in reraise
raise exception
RuntimeError: Caught RuntimeError in DataLoader worker process 1.
Original Traceback (most recent call last):
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/utils/data/_utils/worker.py", line 287, in _worker_loop
data = fetcher.fetch(index)
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 52, in fetch
return self.collate_fn(data)
File "/home/rsmalbraak/.local/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 56, in default_collate
return torch.stack(batch, 0, out=out)
RuntimeError: stack expects each tensor to be equal size, but got [3, 1024, 1024] at entry 0 and [3, 256, 256] at entry 38
As I have used "ppl_sample_similarity_resize", I do not understand why this error occurs.
Do you know how I can fix this?
Looking forward to your reply and thank you very much in advance!
Hello,
I have tf inception model finetuned specific for my dataset. I would like to use this model to compute IS and FID using torch fidelity. How do I convert this inception model to torch and preserve behavior as you did?
Can you share how you did it?
Thanks,
Douglas
Hi,
I downloaded the COCO-val2017 dataset from this link and unzipped the data to get 5000 jpg images. I then use the path to the extracted images to compare it with other images I generated but get an error:
import torch_fidelity
metrics_dict = torch_fidelity.calculate_metrics(
input1="path_to_my_images", # fill this with your generated images path
input2="path_to_coco",
cuda=True,
isc=True,
fid=True,
kid=False,
cache_root='./', # fill this with your own path
cache=True,
verbose=True,
samples_find_deep=True,
samples_find_ext="jpg,jpeg,png"
)
print(metrics_dict)
Here is the output I get:
Creating feature extractor "inception-v3-compat" with features ['logits_unbiased', '2048']
Extracting features from input1
Looking for samples recursively in "outputs/baseline" with extensions jpg,jpeg,png
Found 10000 samples
Processing samples
Extracting features from input2
Looking for samples recursively in "/home/ubuntu/val2017" with extensions jpg,jpeg,png
Found 5000 samples, some are lossy-compressed - this may affect metrics
Traceback (most recent call last):
File "scripts/calculate_fid.py", line 43, in <module>
main()
File "scripts/calculate_fid.py", line 26, in main
metrics_dict = torch_fidelity.calculate_metrics(
File "/home/ubuntu/q-diffusion/src/torch-fidelity/torch_fidelity/metrics.py", line 322, in calculate_metrics
return calculate_metrics_one_feature_extractor(**kwargs)
File "/home/ubuntu/q-diffusion/src/torch-fidelity/torch_fidelity/metrics.py", line 71, in calculate_metrics_one_feature_extractor
featuresdict_2 = extract_featuresdict_from_input_id_cached(2, feat_extractor, **kwargs)
File "/home/ubuntu/q-diffusion/src/torch-fidelity/torch_fidelity/utils.py", line 407, in extract_featuresdict_from_input_id_cached
featuresdict = fn_recompute()
File "/home/ubuntu/q-diffusion/src/torch-fidelity/torch_fidelity/utils.py", line 395, in fn_recompute
return extract_featuresdict_from_input_id(input_id, feat_extractor, **kwargs)
File "/home/ubuntu/q-diffusion/src/torch-fidelity/torch_fidelity/utils.py", line 380, in extract_featuresdict_from_input_id
featuresdict = get_featuresdict_from_dataset(input, feat_extractor, batch_size, cuda, save_cpu_ram, verbose)
File "/home/ubuntu/q-diffusion/src/torch-fidelity/torch_fidelity/utils.py", line 127, in get_featuresdict_from_dataset
for bid, batch in enumerate(dataloader):
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 630, in __next__
data = self._next_data()
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 1345, in _next_data
return self._process_data(data)
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/dataloader.py", line 1371, in _process_data
data.reraise()
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/_utils.py", line 694, in reraise
raise exception
RuntimeError: Caught RuntimeError in DataLoader worker process 0.
Original Traceback (most recent call last):
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/_utils/worker.py", line 308, in _worker_loop
data = fetcher.fetch(index)
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py", line 54, in fetch
return self.collate_fn(data)
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 265, in default_collate
return collate(batch, collate_fn_map=default_collate_fn_map)
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 119, in collate
return collate_fn_map[elem_type](batch, collate_fn_map=collate_fn_map)
File "/opt/conda/envs/qdiff/lib/python3.8/site-packages/torch/utils/data/_utils/collate.py", line 161, in collate_tensor_fn
out = elem.new(storage).resize_(len(batch), *list(elem.size()))
RuntimeError: Trying to resize storage that is not resizable
I installed the latest version following this link. I am using torch version 2.1.0+cu118.
Can you help with this?
Thanks
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Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.