Merge pull request #6 from hpcaitech/inject_openfold

add inject_openfold

fastfold/distributed/core.py

@@ -74,6 +74,8 @@ def get_data_parallel_group():
 
 
 def get_tensor_model_parallel_world_size():
+    if not dap_is_initialized():
+        return 1
     """Return world size for the tensor model parallel group."""
     global _TENSOR_MODEL_PARALLEL_WORLD_SIZE
     if _TENSOR_MODEL_PARALLEL_WORLD_SIZE is not None:
@@ -82,6 +84,8 @@ def get_tensor_model_parallel_world_size():
 
 
 def get_tensor_model_parallel_rank():
+    if not dap_is_initialized():
+        return 0
     """Return my rank for the tensor model parallel group."""
     global _TENSOR_MODEL_PARALLEL_RANK
     if _TENSOR_MODEL_PARALLEL_RANK is not None:

fastfold/model/kernel/cuda_native/csrc/layer_norm_cuda.cpp

 #include <torch/extension.h>
+#include <c10/cuda/CUDAGuard.h>
 
 #include <cassert>
 #include <vector>
@@ -74,6 +75,8 @@ std::vector<at::Tensor> layer_norm_affine(at::Tensor input, at::IntArrayRef norm
     int n1, n2;
     check_args(input, normalized_shape, gamma, beta, n1, n2);
 
+    const at::cuda::OptionalCUDAGuard device_guard(device_of(input));
+
     at::Tensor output = at::empty_like(input, gamma.options().dtype(gamma.scalar_type()));
     at::Tensor mean = at::empty({n1}, input.options().dtype(at::ScalarType::Float));
     at::Tensor invvar = at::empty_like(mean);
@@ -104,6 +107,8 @@ std::vector<at::Tensor> layer_norm_gradient_affine(at::Tensor dout, at::Tensor m
     int n1, n2;
     check_args(input, normalized_shape, gamma, beta, n1, n2);
 
+    const at::cuda::OptionalCUDAGuard device_guard(device_of(input));
+
     at::Tensor grad_input = at::empty_like(input);
     at::Tensor grad_gamma = at::empty_like(gamma);
     at::Tensor grad_beta = at::empty_like(beta);

fastfold/model/kernel/cuda_native/csrc/layer_norm_cuda_kernel.cu

@@ -64,15 +64,27 @@ __global__ void fastfold_layernorm_fp32(float* input, float* output, float* gamm
     int threadidx_x = threadIdx.x / 32;
     int threadidx_y = threadIdx.x % 32;
     int row_offset = blockIdx.x * 4 + threadidx_x;
-    int cols_per_thread = cols / 32;
+    int cols_per_thread = (cols + 31) / 32;
+    int cols_this_thread = cols_per_thread;
+
+    int last_y = (cols / cols_per_thread);
+
+    if (threadidx_y == last_y) {
+        cols_this_thread = cols - cols_per_thread * last_y;
+    }
+    else if (threadidx_y > last_y) {
+        cols_this_thread = 0;
+    }
 
     int lane_id = threadidx_y;
 
+    if (row_offset < rows) {
+
         float buf[32];
 
-    float thread_mean;
-    float thread_m2;
-    float thread_count;
+        float thread_mean = 0.f;
+        float thread_m2 = 0.f;
+        float thread_count = 0.f;
 
         float warp_mean;
         float warp_m2;
@@ -81,13 +93,13 @@ __global__ void fastfold_layernorm_fp32(float* input, float* output, float* gamm
         float* row_input = input + row_offset * cols;
         float* row_output = output + row_offset * cols;
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; i++) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; i++) {
             buf[i] = row_input[lane_id * cols_per_thread + i];
         }
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; i++) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; i++) {
             WelfordOnline(buf[i], &thread_mean, &thread_m2, &thread_count);
         }
 
@@ -102,16 +114,17 @@ __global__ void fastfold_layernorm_fp32(float* input, float* output, float* gamm
             invvar[row_offset] = row_inv_var;
         }
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; ++i) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; ++i) {
             buf[i] = (buf[i] - row_mean) * row_inv_var;
         }
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; ++i) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; ++i) {
             row_output[lane_id * cols_per_thread + i] =
                 buf[i] * gamma[lane_id * cols_per_thread + i] + beta[lane_id * cols_per_thread + i];
         }
+    }
 }
 
 __global__ void fastfold_layernorm_bfp16(at::BFloat16* input, at::BFloat16* output,
@@ -120,15 +133,27 @@ __global__ void fastfold_layernorm_bfp16(at::BFloat16* input, at::BFloat16* outp
     int threadidx_x = threadIdx.x / 32;
     int threadidx_y = threadIdx.x % 32;
     int row_offset = blockIdx.x * 4 + threadidx_x;
-    int cols_per_thread = cols / 32;
+    int cols_per_thread = (cols + 31) / 32;
+    int cols_this_thread = cols_per_thread;
+
+    int last_y = (cols / cols_per_thread);
+
+    if (threadidx_y == last_y) {
+        cols_this_thread = cols - cols_per_thread * last_y;
+    }
+    else if (threadidx_y > last_y) {
+        cols_this_thread = 0;
+    }
 
     int lane_id = threadidx_y;
 
+    if (row_offset < rows) {
+
         float buf[32];
 
-    float thread_mean;
-    float thread_m2;
-    float thread_count;
+        float thread_mean = 0.f;
+        float thread_m2 = 0.f;
+        float thread_count = 0.f;
 
         float warp_mean;
         float warp_m2;
@@ -137,13 +162,13 @@ __global__ void fastfold_layernorm_bfp16(at::BFloat16* input, at::BFloat16* outp
         at::BFloat16* row_input = input + row_offset * cols;
         at::BFloat16* row_output = output + row_offset * cols;
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; i++) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; i++) {
             buf[i] = static_cast<float>(row_input[lane_id * cols_per_thread + i]);
         }
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; i++) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; i++) {
             WelfordOnline(buf[i], &thread_mean, &thread_m2, &thread_count);
         }
 
@@ -158,23 +183,24 @@ __global__ void fastfold_layernorm_bfp16(at::BFloat16* input, at::BFloat16* outp
             invvar[row_offset] = row_inv_var;
         }
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; ++i) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; ++i) {
             buf[i] = (buf[i] - row_mean) * row_inv_var;
         }
 
-#pragma unroll
-    for (int i = 0; i < cols_per_thread; ++i) {
+    #pragma unroll
+        for (int i = 0; i < cols_this_thread; ++i) {
             row_output[lane_id * cols_per_thread + i] =
                 static_cast<at::BFloat16>(buf[i]) * gamma[lane_id * cols_per_thread + i] +
                 beta[lane_id * cols_per_thread + i];
         }
+    }
 }
 
 void cuda_layer_norm(at::Tensor* output, at::Tensor* mean, at::Tensor* invvar, at::Tensor* input,
                      int rows, int cols, at::IntArrayRef normalized_shape, at::Tensor* gamma,
                      at::Tensor* beta, double epsilon) {
-    int grid = rows / 4;
+    int grid = (rows + 3) / 4;
     dim3 block(128);
 
     if (output->dtype() == torch::kFloat32) {

fastfold/model/kernel/jit/fused_ops.py

@@ -9,14 +9,14 @@ def bias_sigmod_ele(y, bias, z):
 
 @torch.jit.script
 def bias_dropout_add(x: torch.Tensor, bias: torch.Tensor, dropmask: torch.Tensor,
-                     residual: torch.Tensor, prob: float) -> torch.Tensor:
-    out = (x + bias) * F.dropout(dropmask, p=prob, training=True)
+                     residual: torch.Tensor, prob: float, training: bool) -> torch.Tensor:
+    out = (x + bias) * F.dropout(dropmask, p=prob, training=training)
     out = residual + out
     return out
 
 
 @torch.jit.script
 def bias_ele_dropout_residual(ab: torch.Tensor, b: torch.Tensor, g: torch.Tensor,
-                              dropout_mask: torch.Tensor, Z_raw: torch.Tensor,
-                              prob: float) -> torch.Tensor:
-    return Z_raw + F.dropout(dropout_mask, p=prob, training=True) * (g * (ab + b))
+                              dropout_mask: torch.Tensor, Z_raw: torch.Tensor, prob: float,
+                              training: bool) -> torch.Tensor:
+    return Z_raw + F.dropout(dropout_mask, p=prob, training=training) * (g * (ab + b))

fastfold/model/msa.py

@@ -50,7 +50,7 @@ class MSARowAttentionWithPairBias(nn.Module):
         M = self.attention(M, M_mask, (b, work))
         dropout_mask = torch.ones_like(M[:, 0:1, :, :], device=M.device, dtype=M.dtype)
 
-        return bias_dropout_add(M, self.out_bias, dropout_mask, M_raw, prob=self.p_drop)
+        return bias_dropout_add(M, self.out_bias, dropout_mask, M_raw, prob=self.p_drop, training=self.training)
 
 
 class MSAColumnAttention(nn.Module):

fastfold/model/triangle.py

@@ -65,7 +65,8 @@ class TriangleMultiplicationOutgoing(nn.Module):
                                          g,
                                          dropout_mask,
                                          Z_raw,
-                                         prob=self.p_drop)
+                                         prob=self.p_drop,
+                                         training=self.training)
 
 
 class TriangleMultiplicationIncoming(nn.Module):
@@ -103,10 +104,7 @@ class TriangleMultiplicationIncoming(nn.Module):
 
         left_proj_act = gather_async_opp(left_proj_act, work, dim=2)
 
-        p = torch.matmul(
-            permute_final_dims(left_proj_act, (2, 1, 0)),
-            right_proj_act
-        )
+        p = torch.matmul(permute_final_dims(left_proj_act, (2, 1, 0)), right_proj_act)
         ab = permute_final_dims(p, (1, 2, 0))
 
         # ab = torch.einsum('bkid,bkjd->bijd', left_proj_act, right_proj_act)
@@ -117,7 +115,8 @@ class TriangleMultiplicationIncoming(nn.Module):
                                          g,
                                          dropout_mask,
                                          Z_raw,
-                                         prob=self.p_drop)
+                                         prob=self.p_drop,
+                                         training=self.training)
 
 
 class TriangleAttentionStartingNode(nn.Module):
@@ -156,7 +155,12 @@ class TriangleAttentionStartingNode(nn.Module):
         Z = self.attention(Z, Z_mask, (b, work))
 
         dropout_mask = torch.ones_like(Z[:, 0:1, :, :], device=Z.device, dtype=Z.dtype)
-        return bias_dropout_add(Z, self.out_bias, dropout_mask, Z_raw, prob=self.p_drop)
+        return bias_dropout_add(Z,
+                                self.out_bias,
+                                dropout_mask,
+                                Z_raw,
+                                prob=self.p_drop,
+                                training=self.training)
 
 
 class TriangleAttentionEndingNode(nn.Module):
@@ -197,7 +201,12 @@ class TriangleAttentionEndingNode(nn.Module):
 
         Z = Z.transpose(-2, -3)
         dropout_mask = torch.ones_like(Z[:, :, 0:1, :], device=Z.device, dtype=Z.dtype)
-        return bias_dropout_add(Z, self.out_bias, dropout_mask, Z_raw, prob=self.p_drop)
+        return bias_dropout_add(Z,
+                                self.out_bias,
+                                dropout_mask,
+                                Z_raw,
+                                prob=self.p_drop,
+                                training=self.training)
 
 
 class PairStack(nn.Module):
@@ -209,10 +218,20 @@ class PairStack(nn.Module):
         self.n_head = 4
         self.hidden_c = int(d_pair / self.n_head)
 
-        self.TriangleMultiplicationOutgoing = TriangleMultiplicationOutgoing(d_pair, p_drop=p_drop, c=d_pair)
-        self.TriangleMultiplicationIncoming = TriangleMultiplicationIncoming(d_pair, p_drop=p_drop, c=d_pair)
-        self.TriangleAttentionStartingNode = TriangleAttentionStartingNode(d_pair, p_drop=p_drop, c=self.hidden_c, n_head=self.n_head)
-        self.TriangleAttentionEndingNode = TriangleAttentionEndingNode(d_pair, p_drop=p_drop, c=self.hidden_c, n_head=self.n_head)
+        self.TriangleMultiplicationOutgoing = TriangleMultiplicationOutgoing(d_pair,
+                                                                             p_drop=p_drop,
+                                                                             c=d_pair)
+        self.TriangleMultiplicationIncoming = TriangleMultiplicationIncoming(d_pair,
+                                                                             p_drop=p_drop,
+                                                                             c=d_pair)
+        self.TriangleAttentionStartingNode = TriangleAttentionStartingNode(d_pair,
+                                                                           p_drop=p_drop,
+                                                                           c=self.hidden_c,
+                                                                           n_head=self.n_head)
+        self.TriangleAttentionEndingNode = TriangleAttentionEndingNode(d_pair,
+                                                                       p_drop=p_drop,
+                                                                       c=self.hidden_c,
+                                                                       n_head=self.n_head)
         self.PairTransition = Transition(d=d_pair)
 
     def forward(self, pair, pair_mask):

fastfold/utils/__init__.py

+from .inject_openfold import inject_openfold
+
+__all__ = ['inject_openfold']
\ No newline at end of file

fastfold/utils/inject_openfold.py

+from typing import Tuple, Optional
+
+import torch
+import torch.nn as nn
+
+from fastfold.model import MSAStack, OutProductMean, PairStack
+from fastfold.distributed.comm_async import All_to_All_Async, All_to_All_Async_Opp
+from fastfold.distributed.comm import gather, scatter
+
+
+class EvoformerBlock(nn.Module):
+
+    def __init__(self, c_m: int, c_z: int, first_block: bool, last_block: bool):
+        super(EvoformerBlock, self).__init__()
+
+        self.first_block = first_block
+        self.last_block = last_block
+
+        self.msa_stack = MSAStack(c_m, c_z, p_drop=0.15)
+        self.communication = OutProductMean(n_feat=c_m, n_feat_out=c_z, n_feat_proj=32)
+        self.pair_stack = PairStack(d_pair=c_z)
+
+    def forward(
+        self,
+        m: torch.Tensor,
+        z: torch.Tensor,
+        msa_mask: torch.Tensor,
+        pair_mask: torch.Tensor,
+        chunk_size: Optional[int] = None,
+        _mask_trans: bool = True,
+    ) -> Tuple[torch.Tensor, torch.Tensor]:
+
+        if self.first_block:
+            m = m.unsqueeze(0)
+            z = z.unsqueeze(0)
+
+            m = scatter(m, dim=1)
+            z = scatter(z, dim=1)
+
+        msa_mask = msa_mask.unsqueeze(0)
+        pair_mask = pair_mask.unsqueeze(0)
+
+        m = self.msa_stack(m, z, msa_mask)
+        z = z + self.communication(m, msa_mask)
+        m, work = All_to_All_Async.apply(m, 1, 2)
+        z = self.pair_stack(z, pair_mask)
+        m = All_to_All_Async_Opp.apply(m, work, 1, 2)
+
+        if self.last_block:
+            m = m.squeeze(0)
+            z = z.squeeze(0)
+
+            m = gather(m, dim=0)
+            z = gather(z, dim=0)
+
+        return m, z
+
+
+def copy_layernorm(model_fast, model_ori):
+    model_fast.weight.copy_(model_ori.weight)
+    model_fast.bias.copy_(model_ori.bias)
+
+
+def copy_linear(model_fast, model_ori):
+    model_fast.weight.copy_(model_ori.weight)
+    if model_fast.use_bias:
+        model_fast.bias.copy_(model_ori.bias)
+
+
+def copy_qkv_linear(model_fast, ori_q, ori_k, ori_v):
+    model_fast.weight.copy_(torch.cat((ori_q.weight, ori_k.weight, ori_v.weight), dim=0))
+
+
+def copy_attention(model_fast, model_ori):
+    copy_qkv_linear(model_fast.to_qkv, model_ori.linear_q, model_ori.linear_k, model_ori.linear_v)
+    copy_linear(model_fast.gating_linear, model_ori.linear_g)
+    copy_linear(model_fast.o_linear, model_ori.linear_o)
+
+    try:
+        model_fast.gating_bias.copy_(model_ori.linear_g.bias)
+    except:
+        print("no gating_bias need copy")
+
+
+def copy_left_right(model_fast, ori_left, ori_right):
+    model_fast.weight.copy_(torch.cat((ori_left.weight, ori_right.weight), dim=0))
+    model_fast.bias.copy_(torch.cat((ori_left.bias, ori_right.bias), dim=0))
+
+
+def copy_transition(model_fast, model_ori):
+    copy_layernorm(model_fast.norm, model_ori.layer_norm)
+    copy_linear(model_fast.linear1, model_ori.linear_1)
+    copy_linear(model_fast.linear2, model_ori.linear_2)
+
+
+def copy_triangle(model_fast, model_ori):
+    copy_layernorm(model_fast.layernorm1, model_ori.layer_norm_in)
+    copy_layernorm(model_fast.layernorm2, model_ori.layer_norm_out)
+    copy_linear(model_fast.output_gate, model_ori.linear_g)
+    copy_linear(model_fast.output_projection, model_ori.linear_z)
+    model_fast.output_bias.copy_(model_ori.linear_z.bias)
+
+    copy_left_right(model_fast.left_right_projection, model_ori.linear_a_p, model_ori.linear_b_p)
+
+    copy_left_right(model_fast.left_right_gate, model_ori.linear_a_g, model_ori.linear_b_g)
+
+
+def copy_triangle_att(model_fast, model_ori):
+    copy_layernorm(model_fast.layernorm1, model_ori.layer_norm)
+    copy_linear(model_fast.linear_b, model_ori.linear)
+    copy_attention(model_fast.attention, model_ori.mha)
+
+    model_fast.out_bias.copy_(model_ori.mha.linear_o.bias)
+
+
+def copy_para(block_fast, block_ori):
+    # msa_stack
+    # MSARowAttentionWithPairBias
+    copy_layernorm(block_fast.msa_stack.MSARowAttentionWithPairBias.layernormM,
+                   block_ori.msa_att_row.layer_norm_m)
+    copy_layernorm(block_fast.msa_stack.MSARowAttentionWithPairBias.layernormZ,
+                   block_ori.msa_att_row.layer_norm_z)
+
+    copy_attention(block_fast.msa_stack.MSARowAttentionWithPairBias.attention,
+                   block_ori.msa_att_row.mha)
+
+    block_fast.msa_stack.MSARowAttentionWithPairBias.linear_b_weights.copy_(
+        block_ori.msa_att_row.linear_z.weight)
+
+    block_fast.msa_stack.MSARowAttentionWithPairBias.out_bias.copy_(
+        block_ori.msa_att_row.mha.linear_o.bias)
+
+    # MSAColumnAttention
+    copy_layernorm(block_fast.msa_stack.MSAColumnAttention.layernormM,
+                   block_ori.msa_att_col._msa_att.layer_norm_m)
+
+    copy_attention(block_fast.msa_stack.MSAColumnAttention.attention,
+                   block_ori.msa_att_col._msa_att.mha)
+
+    # MSATransition
+    copy_transition(block_fast.msa_stack.MSATransition, block_ori.core.msa_transition)
+
+    # communication
+    copy_layernorm(block_fast.communication.layernormM,
+                   block_ori.core.outer_product_mean.layer_norm)
+    copy_linear(block_fast.communication.linear_a, block_ori.core.outer_product_mean.linear_1)
+    copy_linear(block_fast.communication.linear_b, block_ori.core.outer_product_mean.linear_2)
+    copy_linear(block_fast.communication.o_linear, block_ori.core.outer_product_mean.linear_out)
+
+    # pair_stack
+    # TriangleMultiplicationOutgoing
+    copy_triangle(block_fast.pair_stack.TriangleMultiplicationOutgoing, block_ori.core.tri_mul_out)
+    # TriangleMultiplicationIncoming
+    copy_triangle(block_fast.pair_stack.TriangleMultiplicationIncoming, block_ori.core.tri_mul_in)
+
+    # TriangleAttentionStartingNode
+    copy_triangle_att(block_fast.pair_stack.TriangleAttentionStartingNode,
+                      block_ori.core.tri_att_start)
+    copy_triangle_att(block_fast.pair_stack.TriangleAttentionEndingNode, block_ori.core.tri_att_end)
+
+    copy_transition(block_fast.pair_stack.PairTransition, block_ori.core.pair_transition)
+
+
+def inject_openfold(model):
+    with torch.no_grad():
+        fastfold_blocks = nn.ModuleList()
+        for block_id, openfold_block in enumerate(model.evoformer.blocks):
+            c_m = openfold_block.msa_att_row.c_in
+            c_z = openfold_block.msa_att_row.c_z
+            fastfold_block = EvoformerBlock(c_m=c_m,
+                                            c_z=c_z,
+                                            first_block=(block_id == 0),
+                                            last_block=(block_id == len(model.evoformer.blocks) -
+                                                        1))
+
+            copy_para(fastfold_block, openfold_block)
+
+            fastfold_blocks.append(fastfold_block)
+
+        model.evoformer.blocks = fastfold_blocks
+
+    return model

inference.py

+# Copyright 2021 AlQuraishi Laboratory
+# Copyright 2021 DeepMind Technologies Limited
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import argparse
+import logging
+import os
+import random
+import sys
+import time
+from datetime import date
+
+import numpy as np
+import torch
+
+import openfold.np.relax.relax as relax
+from fastfold.utils import inject_openfold
+from openfold.config import model_config
+from openfold.data import data_pipeline, feature_pipeline, templates
+from openfold.model.model import AlphaFold
+from openfold.model.torchscript import script_preset_
+from openfold.np import protein, residue_constants
+from openfold.utils.import_weights import import_jax_weights_
+from openfold.utils.tensor_utils import tensor_tree_map
+from scripts.utils import add_data_args
+
+
+def main(args):
+    config = model_config(args.model_name)
+    model = AlphaFold(config)
+    import_jax_weights_(model, args.param_path, version=args.model_name)
+
+    model = inject_openfold(model)
+    model = model.eval()
+    #script_preset_(model)
+    model = model.to(args.model_device)
+
+    template_featurizer = templates.TemplateHitFeaturizer(
+        mmcif_dir=args.template_mmcif_dir,
+        max_template_date=args.max_template_date,
+        max_hits=config.data.predict.max_templates,
+        kalign_binary_path=args.kalign_binary_path,
+        release_dates_path=args.release_dates_path,
+        obsolete_pdbs_path=args.obsolete_pdbs_path)
+
+    use_small_bfd = (args.bfd_database_path is None)
+
+    data_processor = data_pipeline.DataPipeline(template_featurizer=template_featurizer,)
+
+    output_dir_base = args.output_dir
+    random_seed = args.data_random_seed
+    if random_seed is None:
+        random_seed = random.randrange(sys.maxsize)
+    feature_processor = feature_pipeline.FeaturePipeline(config.data)
+    if not os.path.exists(output_dir_base):
+        os.makedirs(output_dir_base)
+    if (args.use_precomputed_alignments is None):
+        alignment_dir = os.path.join(output_dir_base, "alignments")
+    else:
+        alignment_dir = args.use_precomputed_alignments
+
+    # Gather input sequences
+    with open(args.fasta_path, "r") as fp:
+        lines = [l.strip() for l in fp.readlines()]
+
+    tags, seqs = lines[::2], lines[1::2]
+    tags = [l[1:] for l in tags]
+
+    for tag, seq in zip(tags, seqs):
+        fasta_path = os.path.join(args.output_dir, "tmp.fasta")
+        with open(fasta_path, "w") as fp:
+            fp.write(f">{tag}\n{seq}")
+
+        print("Generating features...")
+        local_alignment_dir = os.path.join(alignment_dir, tag)
+        if (args.use_precomputed_alignments is None):
+            if not os.path.exists(local_alignment_dir):
+                os.makedirs(local_alignment_dir)
+
+            alignment_runner = data_pipeline.AlignmentRunner(
+                jackhmmer_binary_path=args.jackhmmer_binary_path,
+                hhblits_binary_path=args.hhblits_binary_path,
+                hhsearch_binary_path=args.hhsearch_binary_path,
+                uniref90_database_path=args.uniref90_database_path,
+                mgnify_database_path=args.mgnify_database_path,
+                bfd_database_path=args.bfd_database_path,
+                uniclust30_database_path=args.uniclust30_database_path,
+                pdb70_database_path=args.pdb70_database_path,
+                use_small_bfd=use_small_bfd,
+                no_cpus=args.cpus,
+            )
+            alignment_runner.run(fasta_path, local_alignment_dir)
+
+        feature_dict = data_processor.process_fasta(fasta_path=fasta_path,
+                                                    alignment_dir=local_alignment_dir)
+
+        # Remove temporary FASTA file
+        os.remove(fasta_path)
+
+        processed_feature_dict = feature_processor.process_features(
+            feature_dict,
+            mode='predict',
+        )
+
+        print("Executing model...")
+        batch = processed_feature_dict
+        with torch.no_grad():
+            batch = {k: torch.as_tensor(v, device=args.model_device) for k, v in batch.items()}
+
+            t = time.perf_counter()
+            out = model(batch)
+            print(f"Inference time: {time.perf_counter() - t}")
+
+        # Toss out the recycling dimensions --- we don't need them anymore
+        batch = tensor_tree_map(lambda x: np.array(x[..., -1].cpu()), batch)
+        out = tensor_tree_map(lambda x: np.array(x.cpu()), out)
+
+        plddt = out["plddt"]
+        mean_plddt = np.mean(plddt)
+
+        plddt_b_factors = np.repeat(plddt[..., None], residue_constants.atom_type_num, axis=-1)
+
+        unrelaxed_protein = protein.from_prediction(features=batch,
+                                                    result=out,
+                                                    b_factors=plddt_b_factors)
+
+        # Save the unrelaxed PDB.
+        unrelaxed_output_path = os.path.join(args.output_dir,
+                                             f'{tag}_{args.model_name}_unrelaxed.pdb')
+        with open(unrelaxed_output_path, 'w') as f:
+            f.write(protein.to_pdb(unrelaxed_protein))
+
+        amber_relaxer = relax.AmberRelaxation(
+            use_gpu=(args.model_device != "cpu"),
+            **config.relax,
+        )
+
+        # Relax the prediction.
+        t = time.perf_counter()
+        visible_devices = os.getenv("CUDA_VISIBLE_DEVICES")
+        if ("cuda" in args.model_device):
+            device_no = args.model_device.split(":")[-1]
+            os.environ["CUDA_VISIBLE_DEVICES"] = device_no
+        relaxed_pdb_str, _, _ = amber_relaxer.process(prot=unrelaxed_protein)
+        if visible_devices:
+            os.environ["CUDA_VISIBLE_DEVICES"] = visible_devices
+        print(f"Relaxation time: {time.perf_counter() - t}")
+
+        # Save the relaxed PDB.
+        relaxed_output_path = os.path.join(args.output_dir, f'{tag}_{args.model_name}_relaxed.pdb')
+        with open(relaxed_output_path, 'w') as f:
+            f.write(relaxed_pdb_str)
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "fasta_path",
+        type=str,
+    )
+    parser.add_argument(
+        "template_mmcif_dir",
+        type=str,
+    )
+    parser.add_argument("--use_precomputed_alignments",
+                        type=str,
+                        default=None,
+                        help="""Path to alignment directory. If provided, alignment computation 
+                is skipped and database path arguments are ignored.""")
+    parser.add_argument(
+        "--output_dir",
+        type=str,
+        default=os.getcwd(),
+        help="""Name of the directory in which to output the prediction""",
+    )
+    parser.add_argument("--model_device",
+                        type=str,
+                        default="cpu",
+                        help="""Name of the device on which to run the model. Any valid torch
+             device name is accepted (e.g. "cpu", "cuda:0")""")
+    parser.add_argument("--model_name",
+                        type=str,
+                        default="model_1",
+                        help="""Name of a model config. Choose one of model_{1-5} or 
+             model_{1-5}_ptm, as defined on the AlphaFold GitHub.""")
+    parser.add_argument("--param_path",
+                        type=str,
+                        default=None,
+                        help="""Path to model parameters. If None, parameters are selected
+             automatically according to the model name from 
+             openfold/resources/params""")
+    parser.add_argument("--cpus",
+                        type=int,
+                        default=12,
+                        help="""Number of CPUs with which to run alignment tools""")
+    parser.add_argument('--preset',
+                        type=str,
+                        default='reduced_dbs',
+                        choices=('reduced_dbs', 'full_dbs'))
+    parser.add_argument('--data_random_seed', type=str, default=None)
+    add_data_args(parser)
+    args = parser.parse_args()
+
+    if (args.param_path is None):
+        args.param_path = os.path.join("openfold", "resources", "params",
+                                       "params_" + args.model_name + ".npz")
+
+    if (args.model_device == "cpu" and torch.cuda.is_available()):
+        logging.warning("""The model is being run on CPU. Consider specifying 
+            --model_device for better performance""")
+
+    main(args)