o Ti@sPddlZddlmZddlmZddlmZddlmZGdddej j Z dS)N) get_cpu_info)logger) should_log_le)CPULionBuildercsHeZdZdZdfdd ZddZfd d Zedd d Z Z S)DeepSpeedCPULionrMbP?g?g+?Tc st|||d}tt|||t}d|vr|dnd|_d|jvrHt|jD]\}} t| dD]\} } | j t j krEt dnq4q*tj|_tjdt_||_t|_|j|j||d|d|td d S) a&Fast vectorized implementation of Lion optimizer on CPU: See Symbolic Discovery of Optimization Algorithms (https://doi.org/10.48550/arXiv.2302.06675). .. note:: We recommend using our `config `_ to allow :meth:`deepspeed.initialize` to build this optimizer for you. Arguments: model_params (iterable): iterable of parameters to optimize or dicts defining parameter groups. lr (float, optional): learning rate. (default: 1e-3) betas (Tuple[float, float], optional): coefficients used for computing running averages of gradient and its square. (default: (0.9, 0.999)) weight_decay (float, optional): weight decay (L2 penalty) (default: 0) full_precision_optimizer_states: creates momentum and variance in full precision regardless of the precision of the parameters (default: True) )lrbetas weight_decay vendor_id_rawunknownamdparamsz0FP16 params for CPULion may not work on AMD CPUsrinfoN)dictsuperr__init__rlower cpu_vendor enumerate param_groupsdtypetorchhalfrwarning optimizer_idopt_idfp32_optimizer_statesrload ds_opt_lion create_lionr) self model_paramsr r r r default_argscpu_infogroup_idgroupparam_idp __class__O/home/ubuntu/.local/lib/python3.10/site-packages/deepspeed/ops/lion/cpu_lion.pyrs$     (zDeepSpeedCPULion.__init__cCs|j|jdSN)r! destroy_lionr)r#r-r-r.__del__=szDeepSpeedCPULion.__del__cs,tt|||jD]}|ddq dS)NamsgradF)rr __setstate__r setdefault)r#stater(r+r-r.r3Bs zDeepSpeedCPULion.__setstate__Nc CsFd}|durt |}Wdn1swYtd}t|jD]y\}}t|dD]n\}}|jdur;q1|j|ksIJd|jd|j|}t|dkrwd|d<|jr^tj n|j } tj |j | |d|d <tj |j | |d|d <|dd 7<|d \} } |j |j|d|d | | |d|j |jj |d  q1q'|S)aUpdate the model parameters. .. note:: This method will be called internally by ZeRO-Offload. DeepSpeed users should still use ``engine.step()`` as shown in the `Getting Started `_ guide. Args: closure (callable, optional): closure to compute the loss. Defaults to ``None``. Returns: loss: if ``closure`` is provided. Otherwise ``None``. NcpurzCPULion param is on zY and must be 'cpu', make sure you enabled 'offload_optimizer': 'cpu' in your ZeRO config.rstep)rdeviceexp_avg exp_avg_sqrr r r )r enable_gradr8rrgradr5lenrfloatr zeros_likedatar! lion_updater) r#closurelossr8r'r(r)r*r5 state_dtypebeta1beta2r-r-r.r7Gs0      zDeepSpeedCPULion.step)rrrTr/) __name__ __module__ __qualname__rrr1r3rno_gradr7 __classcell__r-r-r+r.r s- r) rcpuinfordeepspeed.utilsrdeepspeed.utils.loggingrdeepspeed.ops.op_builderroptim Optimizerrr-r-r-r.s