Repository: pytorch
Issue: RuntimeError: "grid_sampler_2d_cuda" not implemented for 'BFloat16'
Labels: module: cuda,triaged,module: bfloat16

### 🐛 Describe the bug

Executing a pytorch-lightning models results in the following error:

```
" File "/local_data/user1/miniforge3/envs/lightning_py310/lib/python3.10/site-packages/lightning/pytorch/trainer/call.py", line 294, in _call_strategy_hook
    output = fn(*args, **kwargs)
  File "/local_data/user1/miniforge3/envs/lightning_py310/lib/python3.10/site-packages/lightning/pytorch/strategies/strategy.py", line 380, in training_step
    return self.model.training_step(*args, **kwargs)
  File "/local_data/user1/SPACE/Spherinator/models/rotational_variational_autoencoder_power.py", line 145, in training_step
    rotate = functional.rotate(images, 360.0 / self.rotations * i, expand=False)
  File "/local_data/user1/miniforge3/envs/lightning_py310/lib/python3.10/site-packages/torchvision/transforms/functional.py", line 1131, in rotate
    return F_t.rotate(img, matrix=matrix, interpolation=interpolation.value, expand=expand, fill=fill)
  File "/local_data/user1/miniforge3/envs/lightning_py310/lib/python3.10/site-packages/torchvision/transforms/_functional_tensor.py", line 667, in rotate
    return _apply_grid_transform(img, grid, interpolation, fill=fill)
  File "/local_data/user1/miniforge3/envs/lightning_py310/lib/python3.10/site-packages/torchvision/transforms/_functional_tensor.py", line 558, in _apply_grid_transform
    img = grid_sample(img, grid, mode=mode, padding_mode="zeros", align_corners=False)
  File "/local_data/user1/miniforge3/envs/lightning_py310/lib/python3.10/site-packages/torch/nn/functional.py", line 4304, in grid_sample
    return torch.grid_sampler(input, grid, mode_enum, padding_mode_enum, align_corners)
RuntimeError: "grid_sampler_2d_cuda" not implemented for 'BFloat16'
STAGE:2023-11-01 10:19:28 832709:832709 ActivityProfilerController.cpp:312] Completed Stage: Warm Up"
```

Is there a way to use 16bit? without getting this error? Maybe for that part it is not tried to use fp16? the configuration is:


trainer:
  max_epochs: 51
  accelerator: gpu
  devices: [3]
  precision: "bf16-mixed"

Thank you

### Versions

Collecting environment information...
PyTorch version: 2.2.0.dev20231006+cu121
Is debug build: False
CUDA used to build PyTorch: 12.1
ROCM used to build PyTorch: N/A

OS: Ubuntu 22.04.3 LTS (x86_64)
GCC version: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
Clang version: Could not collect
CMake version: version 3.27.5
Libc version: glibc-2.35

Python version: 3.10.12 | packaged by conda-forge | (main, Jun 23 2023, 22:40:32) [GCC 12.3.0] (64-bit runtime)
Python platform: Linux-6.2.0-35-generic-x86_64-with-glibc2.35
Is CUDA available: True
CUDA runtime version: 12.2.128
CUDA_MODULE_LOADING set to: LAZY
GPU models and configuration: 
GPU 0: NVIDIA A40
GPU 1: NVIDIA A40
GPU 2: NVIDIA A40
GPU 3: NVIDIA A40

Nvidia driver version: 535.86.10
cuDNN version: Could not collect
HIP runtime version: N/A
MIOpen runtime version: N/A
Is XNNPACK available: True

CPU:
Architecture:                       x86_64
CPU op-mode(s):                     32-bit, 64-bit
Address sizes:                      46 bits physical, 57 bits virtual
Byte Order:                         Little Endian
CPU(s):                             112
On-line CPU(s) list:                0-111
Vendor ID:                          GenuineIntel
Model name:                         Intel(R) Xeon(R) Gold 6330 CPU @ 2.00GHz
CPU family:                         6
Model:                              106
Thread(s) per core:                 2
Core(s) per socket:                 28
Socket(s):                          2
Stepping:                           6
BogoMIPS:                           4000.00
Flags:                              fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 invpcid_single intel_ppin ssbd mba ibrs ibpb stibp ibrs_enhanced tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm rdt_a avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb intel_pt avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local split_lock_detect wbnoinvd dtherm ida arat pln pts avx512vbmi umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq la57 rdpid fsrm md_clear pconfig flush_l1d arch_capabilities
Virtualization:                     VT-x
L1d cache:                          2.6 MiB (56 instances)
L1i cache:                          1.8 MiB (56 instances)
L2 cache:                           70 MiB (56 instances)
L3 cache:                           84 MiB (2 instances)
NUMA node(s):                       2
NUMA node0 CPU(s):                  0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110
NUMA node1 CPU(s):                  1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87,89,91,93,95,97,99,101,103,105,107,109,111
Vulnerability Gather data sampling: Mitigation; Microcode
Vulnerability Itlb multihit:        Not affected
Vulnerability L1tf:                 Not affected
Vulnerability Mds:                  Not affected
Vulnerability Meltdown:             Not affected
Vulnerability Mmio stale data:      Mitigation; Clear CPU buffers; SMT vulnerable
Vulnerability Retbleed:             Not affected
Vulnerability Spec rstack overflow: Not affected
Vulnerability Spec store bypass:    Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1:           Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2:           Mitigation; Enhanced IBRS, IBPB conditional, RSB filling, PBRSB-eIBRS SW sequence
Vulnerability Srbds:                Not affected
Vulnerability Tsx async abort:      Not affected

Versions of relevant libraries:
[pip3] mypy==1.5.1
[pip3] mypy-extensions==1.0.0
[pip3] numpy==1.26.0
[pip3] onnx==1.14.1
[pip3] onnxscript==0.1.0.dev20231006
[pip3] pytorch-lightning==2.0.9
[pip3] pytorch-triton==2.1.0+6e4932cda8
[pip3] torch==2.2.0.dev20231006+cu121
[pip3] torchaudio==2.2.0.dev20231006+cpu
[pip3] torchmetrics==1.2.0
[pip3] torchsummary==1.5.1
[pip3] torchvision==0.17.0.dev20231006+cpu
[pip3] triton==2.0.0
[conda] numpy                     1.26.0                   pypi_0    pypi
[conda] pytorch-lightning         2.0.9                    pypi_0    pypi
[conda] pytorch-triton            2.1.0+6e4932cda8          pypi_0    pypi
[conda] torch                     2.2.0.dev20231006+cu121          pypi_0    pypi
[conda] torchaudio                2.2.0.dev20231006+cpu          pypi_0    pypi
[conda] torchmetrics              1.2.0                    pypi_0    pypi
[conda] torchsummary              1.5.1                    pypi_0    pypi
[conda] torchvision               0.17.0.dev20231006+cpu          pypi_0    pypi
[conda] triton                    2.0.0                    pypi_0    pypi


cc @ptrblck