




#
# This a `torch.distributed` diagnostics script that checks that all GPUs in the cluster (one or
# many nodes) can talk to each other via nccl and allocate gpu memory.
#
# To run first adjust the number of processes and nodes:
#
# python -m torch.distributed.run --nproc_per_node 2 --nnodes 1 torch-distributed-gpu-test.py
#
# You may need to add --master_addr $MASTER_ADDR --master_port $MASTER_PORT if using a custom addr:port
#
# You can also use the rdzv API: --rdzv_endpoint $MASTER_ADDR:$MASTER_PORT --rdzv_backend c10d
#
# use torch.distributed.launch instead of torch.distributed.run for torch < 1.9
#
# If you get a hanging in `barrier` calls you have some network issues, you may try to debug this with:
#
# NCCL_DEBUG=INFO python -m torch.distributed.run --nproc_per_node 2 --nnodes 1 torch-distributed-gpu-test.py
#
# which should tell you what's going on behind the scenes.
#
#
# This script can be run via `srun` in the SLURM environment as well. Here is a SLURM script that
# runs on 2 nodes of 4 gpus per node:
#
# #SBATCH --job-name=test-nodes        # name
# #SBATCH --nodes=2                    # nodes
# #SBATCH --ntasks-per-node=1          # crucial - only 1 task per dist per node!
# #SBATCH --cpus-per-task=10           # number of cores per tasks
# #SBATCH --gres=gpu:4                 # number of gpus
# #SBATCH --time 0:05:00               # maximum execution time (HH:MM:SS)
# #SBATCH --output=%x-%j.out           # output file name
#
# GPUS_PER_NODE=4
# MASTER_ADDR=$(scontrol show hostnames $SLURM_JOB_NODELIST | head -n 1)
# MASTER_PORT=6000
#
# srun --jobid $SLURM_JOBID bash -c 'python -m torch.distributed.run \
# --nproc_per_node $GPUS_PER_NODE --nnodes $SLURM_NNODES --node_rank $SLURM_PROCID \
# --master_addr $MASTER_ADDR --master_port $MASTER_PORT \
# torch-distributed-gpu-test.py'
#

import fcntl
import os
import socket

import torch
import torch.distributed as dist







def        lowerCAmelCase_			(  *snake_case_  ):
      with open(snake_case_,"""r"""  ) as fh:
            fcntl.flock(snake_case_,fcntl.LOCK_EX  )
            try:
                  print(*snake_case_  )
            finally:
                  fcntl.flock(snake_case_,fcntl.LOCK_UN  )


_snake_case            = int(os.environ["LOCAL_RANK"])
torch.cuda.set_device(local_rank)
_snake_case            = torch.device("cuda", local_rank)
_snake_case            = socket.gethostname()

_snake_case            = f"""[{hostname}-{local_rank}]"""

try:
  # test distributed
  dist.init_process_group("nccl")
  dist.all_reduce(torch.ones(1).to(device), op=dist.ReduceOp.SUM)
  dist.barrier()

  # test cuda is available and can allocate memory
  torch.cuda.is_available()
  torch.ones(1).cuda(local_rank)

  # global rank
  _snake_case            = dist.get_rank()
  _snake_case            = dist.get_world_size()

  printflock(f"""{gpu} is OK (global rank: {rank}/{world_size})""")

  dist.barrier()
  if rank == 0:
    printflock(f"""pt={torch.__version__}, cuda={torch.version.cuda}, nccl={torch.cuda.nccl.version()}""")

except Exception:
  printflock(f"""{gpu} is broken""")
  raise







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      _A							:  Union[str, Any]    =		""""""
      for i in table:
            res += inp[i - 1]
      return res







def        lowerCAmelCase_			(  snake_case_  ):
      return data[1:] + data[0]







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      _A							:  Dict    =		""""""
      for i in range(len(snake_case_  )  ):
            if a[i] == b[i]:
                  res += "0"
            else:
                  res += "1"
      return res







def        lowerCAmelCase_			(  snake_case_,snake_case_  ):
      _A							:  int    =		int("""0b""" + data[0] + data[-1],2  )
      _A							:  Any    =		int("""0b""" + data[1:3],2  )
      return bin(s[row][col]  )[2:]







def        lowerCAmelCase_			(  snake_case_,snake_case_,snake_case_,snake_case_,snake_case_  ):
      _A							:  List[str]    =		message[:4]
      _A							:  List[Any]    =		message[4:]
      _A							:  Union[str, Any]    =		apply_table(snake_case_,snake_case_  )
      _A							:  List[Any]    =		xor(snake_case_,snake_case_  )
      _A							:  Optional[Any]    =		apply_sbox(snake_case_,temp[:4]  )  # noqa: E741
      _A							:  List[Any]    =		apply_sbox(snake_case_,temp[4:]  )
      _A							:  int    =		"""0""" * (2 - len(snake_case_  )) + l  # noqa: E741
      _A							:  Union[str, Any]    =		"""0""" * (2 - len(snake_case_  )) + r
      _A							:  List[Any]    =		apply_table(l + r,snake_case_  )
      _A							:  Any    =		xor(snake_case_,snake_case_  )
      return temp + right


if __name__ == "__main__":
  _snake_case            = input("Enter 10 bit key: ")
  _snake_case            = input("Enter 8 bit message: ")

  _snake_case            = [6, 3, 7, 4, 8, 5, 10, 9]
  _snake_case            = [3, 5, 2, 7, 4, 10, 1, 9, 8, 6]
  _snake_case            = [2, 4, 3, 1]
  _snake_case            = [2, 6, 3, 1, 4, 8, 5, 7]
  _snake_case            = [4, 1, 3, 5, 7, 2, 8, 6]
  _snake_case            = [4, 1, 2, 3, 2, 3, 4, 1]
  _snake_case            = [[1, 0, 3, 2], [3, 2, 1, 0], [0, 2, 1, 3], [3, 1, 3, 2]]
  _snake_case            = [[0, 1, 2, 3], [2, 0, 1, 3], [3, 0, 1, 0], [2, 1, 0, 3]]

  # key generation
  _snake_case            = apply_table(key, paa_table)
  _snake_case            = temp[:5]
  _snake_case            = temp[5:]
  _snake_case            = left_shift(left)
  _snake_case            = left_shift(right)
  _snake_case            = apply_table(left + right, pa_table)
  _snake_case            = left_shift(left)
  _snake_case            = left_shift(right)
  _snake_case            = left_shift(left)
  _snake_case            = left_shift(right)
  _snake_case            = apply_table(left + right, pa_table)

  # encryption
  _snake_case            = apply_table(message, IP)
  _snake_case            = function(expansion, sa, sa, keya, temp)
  _snake_case            = temp[4:] + temp[:4]
  _snake_case            = function(expansion, sa, sa, keya, temp)
  _snake_case            = apply_table(temp, IP_inv)
  print("Cipher text is:", CT)

  # decryption
  _snake_case            = apply_table(CT, IP)
  _snake_case            = function(expansion, sa, sa, keya, temp)
  _snake_case            = temp[4:] + temp[:4]
  _snake_case            = function(expansion, sa, sa, keya, temp)
  _snake_case            = apply_table(temp, IP_inv)
  print("Plain text after decypting is:", PT)

