Repository: pytorch
Issue: torch.topk returned values and indices are reordered if sorted=False
Labels: triaged,module: sorting and selection

### 🐛 Describe the bug

If sorted=False, torch.topk will return a set of reordered values and indices tensors instead of the original values


![topk](https://github.com/pytorch/pytorch/assets/20369971/55631820-62d2-4eb4-9544-38268554e77c)


### Versions


 
Collecting environment information...
PyTorch version: 2.0.1+cu117
Is debug build: False
CUDA used to build PyTorch: 11.7
ROCM used to build PyTorch: N/A

OS: Rocky Linux release 8.5 (Green Obsidian) (x86_64)
GCC version: (GCC) 10.2.0
Clang version: Could not collect
CMake version: version 3.27.2
Libc version: glibc-2.28

Python version: 3.8.0 | packaged by conda-forge | (default, Nov 22 2019, 19:11:38)  [GCC 7.3.0] (64-bit runtime)
Python platform: Linux-4.18.0-348.el8.0.2.x86_64-x86_64-with-glibc2.10
Is CUDA available: True
CUDA runtime version: Could not collect
CUDA_MODULE_LOADING set to: LAZY
GPU models and configuration: GPU 0: NVIDIA A40
Nvidia driver version: 510.47.03
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
Byte Order:          Little Endian
CPU(s):              192
On-line CPU(s) list: 0-191
Thread(s) per core:  2
Core(s) per socket:  48
Socket(s):           2
NUMA node(s):        2
Vendor ID:           AuthenticAMD
CPU family:          23
Model:               49
Model name:          AMD EPYC 7552 48-Core Processor
Stepping:            0
CPU MHz:             2200.000
CPU max MHz:         2200.0000
CPU min MHz:         1500.0000
BogoMIPS:            4400.06
Virtualization:      AMD-V
L1d cache:           32K
L1i cache:           32K
L2 cache:            512K
L3 cache:            16384K
NUMA node0 CPU(s):   0-47,96-143
NUMA node1 CPU(s):   48-95,144-191
Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr wbnoinvd amd_ppin arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif v_spec_ctrl umip rdpid overflow_recov succor smca sme sev sev_es

Versions of relevant libraries:
[pip3] numpy==1.24.4
[pip3] torch==2.0.1
[pip3] torch-geometric==2.3.1
[pip3] torch-scatter==2.1.1
[pip3] triton==2.0.0
[conda] numpy                     1.24.4                   pypi_0    pypi
[conda] torch                     2.0.1                    pypi_0    pypi
[conda] torch-geometric           2.3.1                    pypi_0    pypi
[conda] torch-scatter             2.1.1                    pypi_0    pypi
[conda] triton                    2.0.0                    pypi_0    pypi