Repository: pytorch
Issue: In AOTI Runtime, acquiring a write lock on model_exec_mutex_ may cause starvation.
Labels: triaged,oncall: export,module: aotinductor

### 🐛 Describe the bug

**Describe**
https://github.com/pytorch/pytorch/blob/6f28e466f3d7b396dfe9cea87f4377be77fa7ddf/torch/csrc/inductor/aoti_runtime/model_container.h#L87
In `AOTInductorModelContainer::run`, if constant_folded_ is false, it will attempt to acquire a write lock on `model_exec_mutex_`. However, if multiple threads enter here simultaneously, some threads will be blocked. Subsequently, other threads may continue calling `AOTInductorModelContainer::run` while holding the read lock on `model_exec_mutex_`, and those threads attempting to acquire the write lock on `model_exec_mutex_` may remain blocked.

**reproduction**
Use any model, such as the one in the [tutorial](https://pytorch.org/tutorials/recipes/torch_export_aoti_python.html), to export model.so, Complex models may be more likely to reproduce issues.
When inference is executed in multiple threads, there is a probability that some threads will be blocked.
```
#include <iostream>
#include <vector>
#include <thread>

#include <torch/torch.h>
#include <torch/csrc/inductor/aoti_runner/model_container_runner_cpu.h>

void test_inference(torch::inductor::AOTIModelContainerRunnerCpu& runner) {
    std::vector<torch::Tensor> inputs = {torch::randn({8, 10}, at::kCPU)};
    for (int i = 0; i < 1000000; i++) {
        std::vector<torch::Tensor> outputs = runner.run(inputs);
    }
}

int main() {
    c10::InferenceMode mode;

    torch::inductor::AOTIModelContainerRunnerCpu runner("./model.so", 512);
    torch::set_num_interop_threads(1);
    torch::set_num_threads(1);
    std::vector<std::thread> threads;
    for (int i = 0; i < 16; i++) {
        threads.push_back(std::thread(test_inference, std::ref(runner)));
    }
    for (int i = 0; i < 16; i++) {
        threads[i].join();
    }
    return 0;
}
```

![image](https://github.com/user-attachments/assets/5bcfd798-672c-497d-9090-72ae27cec328)


### Versions

PyTorch version: 2.5.1+cpu
Is debug build: False
CUDA used to build PyTorch: Could not collect
ROCM used to build PyTorch: N/A

OS: Ubuntu 22.04.5 LTS (x86_64)
GCC version: (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
Clang version: Could not collect
CMake version: version 3.22.1
Libc version: glibc-2.35

Python version: 3.10.12 (main, Nov  6 2024, 20:22:13) [GCC 11.4.0] (64-bit runtime)
Python platform: Linux-5.15.0-124-generic-x86_64-with-glibc2.35
Is CUDA available: False
CUDA runtime version: Could not collect
CUDA_MODULE_LOADING set to: N/A
GPU models and configuration: GPU 0: NVIDIA H100 80GB HBM3
Nvidia driver version: 550.127.05
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:                        52 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) Platinum 8480+
CPU family:                           6
Model:                                143
Thread(s) per core:                   1
Core(s) per socket:                   56
Socket(s):                            2
Stepping:                             8
CPU max MHz:                          3800.0000
CPU min MHz:                          800.0000
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 tsc_known_freq pni pclmulqdq dtes64 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 cat_l2 cdp_l3 invpcid_single intel_ppin cdp_l2 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 avx_vnni avx512_bf16 wbnoinvd dtherm ida arat pln pts hwp hwp_act_window hwp_epp hwp_pkg_req avx512vbmi umip pku ospke waitpkg avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg tme avx512_vpopcntdq la57 rdpid bus_lock_detect cldemote movdiri movdir64b enqcmd fsrm md_clear serialize tsxldtrk pconfig arch_lbr amx_bf16 avx512_fp16 amx_tile amx_int8 flush_l1d arch_capabilities
Virtualization:                       VT-x
L1d cache:                            5.3 MiB (112 instances)
L1i cache:                            3.5 MiB (112 instances)
L2 cache:                             224 MiB (112 instances)
L3 cache:                             210 MiB (2 instances)
NUMA node(s):                         2
NUMA node0 CPU(s):                    0-55
NUMA node1 CPU(s):                    56-111
Vulnerability Gather data sampling:   Not affected
Vulnerability Itlb multihit:          Not affected
Vulnerability L1tf:                   Not affected
Vulnerability Mds:                    Not affected
Vulnerability Meltdown:               Not affected
Vulnerability Mmio stale data:        Not affected
Vulnerability Reg file data sampling: Not affected
Vulnerability Retbleed:               Not affected
Vulnerability Spec rstack overflow:   Not affected
Vulnerability Spec store bypass:      Vulnerable
Vulnerability Spectre v1:             Vulnerable: __user pointer sanitization and usercopy barriers only; no swapgs barriers
Vulnerability Spectre v2:             Vulnerable; IBPB: disabled; STIBP: disabled; PBRSB-eIBRS: Vulnerable; BHI: Vulnerable
Vulnerability Srbds:                  Not affected
Vulnerability Tsx async abort:        Not affected

Versions of relevant libraries:
[pip3] numpy==1.26.3
[pip3] optree==0.13.1
[pip3] pytorch-triton==3.1.0+5fe38ffd73
[pip3] torch==2.5.1+cpu
[pip3] torchaudio==2.5.1+cpu
[pip3] torchvision==0.20.1+cpu
[conda] Could not collect

cc @chauhang @penguinwu @voznesenskym @EikanWang @jgong5 @Guobing-Chen @XiaobingSuper @zhuhaozhe @blzheng @wenzhe-nrv @jiayisunx @ipiszy @yf225 @chenyang78 @kadeng @muchulee8 @ColinPeppler @amjames @desertfire @aakhundov @BoyuanFeng @avikchaudhuri @gmagogsfm @zhxchen17 @tugsbayasgalan @angelayi @suo @ydwu4