I have setup the docker container to run the model evaluation.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #!/usr/bin/env python import json import multiprocessing def count_words(chunk): """Counts word frequencies in a given chunk of text.""" word_counts = {} for word in chunk.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == "__main__": file_path = "/tmp/file.txt" num_processes = 4 # Read the file and split into chunks with open(file_path, "r") as f: file_content = f.read() chunk_size = len(file_content) // num_processes chunks = [file_content[i:i + chunk_size] for i in range(0, len(file_content), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Map the count_words function to each chunk results = pool.map(count_words, chunks) # Print out the JSON for each chunk for result in results: print(json.dumps(result)) |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #!/usr/bin/env python import json import multiprocessing def count_words(chunk): """Counts word frequencies in a given chunk of text.""" word_counts = {} for word in chunk.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == "__main__": file_path = "/tmp/file.txt" num_processes = 4 # Read the file and split into chunks with open(file_path, "r") as f: file_content = f.read() chunk_size = len(file_content) // num_processes chunks = [file_content[i:i + chunk_size] for i in range(0, len(file_content), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Map the count_words function to each chunk results = pool.map(count_words, chunks) # Print out the JSON for each chunk for result in results: print(json.dumps(result)) |
Below is some student's code. I asked them to parallelize some code. Do not judge if it is correct, I have test cases for that. Just tell me if they tried to parallelize it. #!/usr/bin/env python import json import multiprocessing def count_words(chunk): """Counts word frequencies in a given chunk of text.""" word_counts = {} for word in chunk.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == "__main__": file_path = "/tmp/file.txt" num_processes = 4 # Read the file and split into chunks with open(file_path, "r") as f: file_content = f.read() chunk_size = len(file_content) // num_processes chunks = [file_content[i:i + chunk_size] for i in range(0, len(file_content), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Map the count_words function to each chunk results = pool.map(count_words, chunks) # Print out the JSON for each chunk for result in results: print(json.dumps(result)) Answer either 'The student passes' or 'The student fails'.
The student passes.
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | #!/usr/bin/env python import json import multiprocessing def count_words(chunk): """Counts word frequencies in a given chunk of text.""" word_counts = {} for word in chunk.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == "__main__": file_path = "/tmp/file.txt" num_processes = 4 # Read the file and split into chunks with open(file_path, "r") as f: file_content = f.read() chunk_size = len(file_content) // num_processes chunks = [file_content[i:i + chunk_size] for i in range(0, len(file_content), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Map the count_words function to each chunk results = pool.map(count_words, chunks) # Print out the JSON for each chunk for result in results: print(json.dumps(result)) |
{"it": 4, "was": 4, "the": 4, "best": 1, "of": 4, "times,": 2, "worst": 1, "age": 2, "wisdom,": 1, "foolish": 1}
{"ness,": 1, "it": 4, "was": 4, "the": 3, "epoch": 2, "of": 3, "belief,": 1, "incredulity,": 1, "season": 1, "Light,": 1, "th": 1}
{"e": 1, "season": 1, "of": 3, "Darkness,": 1, "it": 2, "was": 2, "the": 2, "spring": 1, "hope,": 1, "winter": 1, "despair,": 1, "we": 1, "had": 1, "everything": 1, "before": 1}
{"us,": 2, "we": 3, "had": 1, "nothing": 1, "before": 1, "were": 2, "all": 2, "going": 2, "direct": 2, "to": 1, "Heaven,": 1, "the": 1, "other": 1, "way": 1}
Resulting in output: {'it': 10, 'was': 10, 'the': 10, 'best': 1, 'of': 10, 'times,': 2, 'worst': 1, 'age': 2, 'wisdom,': 1, 'foolish': 1, 'ness,': 1, 'epoch': 2, 'belief,': 1, 'incredulity,': 1, 'season': 2, 'Light,': 1, 'th': 1, 'e': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'we': 4, 'had': 2, 'everything': 1, 'before': 2, 'us,': 2, 'nothing': 1, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
Testing if the previous output equals the string {'the': 11, 'it': 10, 'was': 10, 'of': 10, 'we': 4, 'times,': 2, 'age': 2, 'epoch': 2, 'season': 2, 'had': 2, 'before': 2, 'us,': 2, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'best': 1, 'worst': 1, 'wisdom,': 1, 'foolishness,': 1, 'belief,': 1, 'incredulity,': 1, 'Light,': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'everything': 1, 'nothing': 1, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
: False
I have setup the docker container to run the model evaluation.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #!/usr/bin/env python import json import multiprocessing def count_words(text): """Counts word occurrences in a given text.""" word_counts = {} for word in text.lower().split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk): """Processes a chunk of the file and prints the word counts as JSON.""" word_counts = count_words(chunk) print(json.dumps(word_counts)) if __name__ == "__main__": filename = "/tmp/file.txt" num_processes = 4 # Read the entire file with open(filename, "r") as f: text = f.read() # Calculate chunk size chunk_size = len(text) // num_processes # Create chunks for parallel processing chunks = [text[i:i + chunk_size] for i in range(0, len(text), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Process chunks in parallel pool.map(process_chunk, chunks) |
1 2 | chmod +x python_word_count.py |
1 2 | ./python_word_count.py |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #!/usr/bin/env python import json import multiprocessing def count_words(text): """Counts word occurrences in a given text.""" word_counts = {} for word in text.lower().split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk): """Processes a chunk of the file and prints the word counts as JSON.""" word_counts = count_words(chunk) print(json.dumps(word_counts)) if __name__ == "__main__": filename = "/tmp/file.txt" num_processes = 4 # Read the entire file with open(filename, "r") as f: text = f.read() # Calculate chunk size chunk_size = len(text) // num_processes # Create chunks for parallel processing chunks = [text[i:i + chunk_size] for i in range(0, len(text), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Process chunks in parallel pool.map(process_chunk, chunks) |
Below is some student's code. I asked them to parallelize some code. Do not judge if it is correct, I have test cases for that. Just tell me if they tried to parallelize it. #!/usr/bin/env python import json import multiprocessing def count_words(text): """Counts word occurrences in a given text.""" word_counts = {} for word in text.lower().split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk): """Processes a chunk of the file and prints the word counts as JSON.""" word_counts = count_words(chunk) print(json.dumps(word_counts)) if __name__ == "__main__": filename = "/tmp/file.txt" num_processes = 4 # Read the entire file with open(filename, "r") as f: text = f.read() # Calculate chunk size chunk_size = len(text) // num_processes # Create chunks for parallel processing chunks = [text[i:i + chunk_size] for i in range(0, len(text), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Process chunks in parallel pool.map(process_chunk, chunks) Answer either 'The student passes' or 'The student fails'.
The student passes.
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | #!/usr/bin/env python import json import multiprocessing def count_words(text): """Counts word occurrences in a given text.""" word_counts = {} for word in text.lower().split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk): """Processes a chunk of the file and prints the word counts as JSON.""" word_counts = count_words(chunk) print(json.dumps(word_counts)) if __name__ == "__main__": filename = "/tmp/file.txt" num_processes = 4 # Read the entire file with open(filename, "r") as f: text = f.read() # Calculate chunk size chunk_size = len(text) // num_processes # Create chunks for parallel processing chunks = [text[i:i + chunk_size] for i in range(0, len(text), chunk_size)] # Create a process pool with multiprocessing.Pool(processes=num_processes) as pool: # Process chunks in parallel pool.map(process_chunk, chunks) |
{"it": 4, "was": 4, "the": 4, "best": 1, "of": 4, "times,": 2, "worst": 1, "age": 2, "wisdom,": 1, "foolish": 1}
{"us,": 2, "we": 3, "had": 1, "nothing": 1, "before": 1, "were": 2, "all": 2, "going": 2, "direct": 2, "to": 1, "heaven,": 1, "the": 1, "other": 1, "way": 1}
{"ness,": 1, "it": 4, "was": 4, "the": 3, "epoch": 2, "of": 3, "belief,": 1, "incredulity,": 1, "season": 1, "light,": 1, "th": 1}
{"e": 1, "season": 1, "of": 3, "darkness,": 1, "it": 2, "was": 2, "the": 2, "spring": 1, "hope,": 1, "winter": 1, "despair,": 1, "we": 1, "had": 1, "everything": 1, "before": 1}
Resulting in output: {'it': 10, 'was': 10, 'the': 10, 'best': 1, 'of': 10, 'times,': 2, 'worst': 1, 'age': 2, 'wisdom,': 1, 'foolish': 1, 'us,': 2, 'we': 4, 'had': 2, 'nothing': 1, 'before': 2, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'to': 1, 'heaven,': 1, 'other': 1, 'way': 1, 'ness,': 1, 'epoch': 2, 'belief,': 1, 'incredulity,': 1, 'season': 2, 'light,': 1, 'th': 1, 'e': 1, 'darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'everything': 1}
Testing if the previous output equals the string {'the': 11, 'it': 10, 'was': 10, 'of': 10, 'we': 4, 'times,': 2, 'age': 2, 'epoch': 2, 'season': 2, 'had': 2, 'before': 2, 'us,': 2, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'best': 1, 'worst': 1, 'wisdom,': 1, 'foolishness,': 1, 'belief,': 1, 'incredulity,': 1, 'Light,': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'everything': 1, 'nothing': 1, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
: False
I have setup the docker container to run the model evaluation.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | #!/usr/bin/env python3 import json import multiprocessing import os def count_words(file_path, start, end): """Counts word frequencies in a portion of a file. Args: file_path: Path to the text file. start: Starting byte position. end: Ending byte position. Returns: A dictionary containing word counts. """ word_counts = {} with open(file_path, 'r') as file: file.seek(start) content = file.read(end - start) for word in content.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' file_size = os.path.getsize(file_path) chunk_size = file_size // 4 # Create a pool of 4 worker processes with multiprocessing.Pool(processes=4) as pool: results = [pool.apply_async(count_words, (file_path, i * chunk_size, (i + 1) * chunk_size)) for i in range(4)] # Print each JSON result on a separate line for result in results: print(json.dumps(result.get())) |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | #!/usr/bin/env python3 import json import multiprocessing import os def count_words(file_path, start, end): """Counts word frequencies in a portion of a file. Args: file_path: Path to the text file. start: Starting byte position. end: Ending byte position. Returns: A dictionary containing word counts. """ word_counts = {} with open(file_path, 'r') as file: file.seek(start) content = file.read(end - start) for word in content.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' file_size = os.path.getsize(file_path) chunk_size = file_size // 4 # Create a pool of 4 worker processes with multiprocessing.Pool(processes=4) as pool: results = [pool.apply_async(count_words, (file_path, i * chunk_size, (i + 1) * chunk_size)) for i in range(4)] # Print each JSON result on a separate line for result in results: print(json.dumps(result.get())) |
Below is some student's code. I asked them to parallelize some code. Do not judge if it is correct, I have test cases for that. Just tell me if they tried to parallelize it. #!/usr/bin/env python3 import json import multiprocessing import os def count_words(file_path, start, end): """Counts word frequencies in a portion of a file. Args: file_path: Path to the text file. start: Starting byte position. end: Ending byte position. Returns: A dictionary containing word counts. """ word_counts = {} with open(file_path, 'r') as file: file.seek(start) content = file.read(end - start) for word in content.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' file_size = os.path.getsize(file_path) chunk_size = file_size // 4 # Create a pool of 4 worker processes with multiprocessing.Pool(processes=4) as pool: results = [pool.apply_async(count_words, (file_path, i * chunk_size, (i + 1) * chunk_size)) for i in range(4)] # Print each JSON result on a separate line for result in results: print(json.dumps(result.get())) Answer either 'The student passes' or 'The student fails'.
The student passes.
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | #!/usr/bin/env python3 import json import multiprocessing import os def count_words(file_path, start, end): """Counts word frequencies in a portion of a file. Args: file_path: Path to the text file. start: Starting byte position. end: Ending byte position. Returns: A dictionary containing word counts. """ word_counts = {} with open(file_path, 'r') as file: file.seek(start) content = file.read(end - start) for word in content.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' file_size = os.path.getsize(file_path) chunk_size = file_size // 4 # Create a pool of 4 worker processes with multiprocessing.Pool(processes=4) as pool: results = [pool.apply_async(count_words, (file_path, i * chunk_size, (i + 1) * chunk_size)) for i in range(4)] # Print each JSON result on a separate line for result in results: print(json.dumps(result.get())) |
{"it": 4, "was": 4, "the": 4, "best": 1, "of": 4, "times,": 2, "worst": 1, "age": 2, "wisdom,": 1, "foolish": 1}
{"ness,": 1, "it": 4, "was": 4, "the": 3, "epoch": 2, "of": 3, "belief,": 1, "incredulity,": 1, "season": 1, "Light,": 1, "th": 1}
{"e": 1, "season": 1, "of": 3, "Darkness,": 1, "it": 2, "was": 2, "the": 2, "spring": 1, "hope,": 1, "winter": 1, "despair,": 1, "we": 1, "had": 1, "everything": 1, "before": 1}
{"us,": 2, "we": 3, "had": 1, "nothing": 1, "before": 1, "were": 2, "all": 2, "going": 2, "direct": 2, "to": 1, "Heaven,": 1, "the": 1, "other": 1, "way": 1}
Resulting in output: {'it': 10, 'was': 10, 'the': 10, 'best': 1, 'of': 10, 'times,': 2, 'worst': 1, 'age': 2, 'wisdom,': 1, 'foolish': 1, 'ness,': 1, 'epoch': 2, 'belief,': 1, 'incredulity,': 1, 'season': 2, 'Light,': 1, 'th': 1, 'e': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'we': 4, 'had': 2, 'everything': 1, 'before': 2, 'us,': 2, 'nothing': 1, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
Testing if the previous output equals the string {'the': 11, 'it': 10, 'was': 10, 'of': 10, 'we': 4, 'times,': 2, 'age': 2, 'epoch': 2, 'season': 2, 'had': 2, 'before': 2, 'us,': 2, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'best': 1, 'worst': 1, 'wisdom,': 1, 'foolishness,': 1, 'belief,': 1, 'incredulity,': 1, 'Light,': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'everything': 1, 'nothing': 1, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
: False
I have setup the docker container to run the model evaluation.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | import json import multiprocessing def count_words(lines): """Counts the occurrences of each word in the given lines. Args: lines: A list of strings, where each string represents a line of text. Returns: A dictionary where keys are words and values are their counts. """ word_counts = {} for line in lines: for word in line.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk_lines, output_queue): """Processes a chunk of lines from the file. This function counts the words in the given chunk and puts the result in the output queue. Args: chunk_lines: A list of strings representing a chunk of the file. output_queue: A multiprocessing.Queue to store the results. """ chunk_word_counts = count_words(chunk_lines) output_queue.put(chunk_word_counts) if __name__ == '__main__': filename = '/tmp/file.txt' num_processes = 4 # Read the file and split into chunks with open(filename, 'r') as f: lines = f.readlines() chunk_size = len(lines) // num_processes chunks = [lines[i:i + chunk_size] for i in range(0, len(lines), chunk_size)] # Create a queue to store the results from each process output_queue = multiprocessing.Queue() # Create and start the processes processes = [] for i in range(num_processes): process = multiprocessing.Process(target=process_chunk, args=(chunks[i], output_queue)) processes.append(process) process.start() # Get the results from the queue and print them as JSON for _ in range(num_processes): chunk_word_counts = output_queue.get() print(json.dumps(chunk_word_counts)) # Wait for all processes to complete for process in processes: process.join() |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | import json import multiprocessing def count_words(lines): """Counts the occurrences of each word in the given lines. Args: lines: A list of strings, where each string represents a line of text. Returns: A dictionary where keys are words and values are their counts. """ word_counts = {} for line in lines: for word in line.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk_lines, output_queue): """Processes a chunk of lines from the file. This function counts the words in the given chunk and puts the result in the output queue. Args: chunk_lines: A list of strings representing a chunk of the file. output_queue: A multiprocessing.Queue to store the results. """ chunk_word_counts = count_words(chunk_lines) output_queue.put(chunk_word_counts) if __name__ == '__main__': filename = '/tmp/file.txt' num_processes = 4 # Read the file and split into chunks with open(filename, 'r') as f: lines = f.readlines() chunk_size = len(lines) // num_processes chunks = [lines[i:i + chunk_size] for i in range(0, len(lines), chunk_size)] # Create a queue to store the results from each process output_queue = multiprocessing.Queue() # Create and start the processes processes = [] for i in range(num_processes): process = multiprocessing.Process(target=process_chunk, args=(chunks[i], output_queue)) processes.append(process) process.start() # Get the results from the queue and print them as JSON for _ in range(num_processes): chunk_word_counts = output_queue.get() print(json.dumps(chunk_word_counts)) # Wait for all processes to complete for process in processes: process.join() |
Below is some student's code. I asked them to parallelize some code. Do not judge if it is correct, I have test cases for that. Just tell me if they tried to parallelize it. import json import multiprocessing def count_words(lines): """Counts the occurrences of each word in the given lines. Args: lines: A list of strings, where each string represents a line of text. Returns: A dictionary where keys are words and values are their counts. """ word_counts = {} for line in lines: for word in line.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk_lines, output_queue): """Processes a chunk of lines from the file. This function counts the words in the given chunk and puts the result in the output queue. Args: chunk_lines: A list of strings representing a chunk of the file. output_queue: A multiprocessing.Queue to store the results. """ chunk_word_counts = count_words(chunk_lines) output_queue.put(chunk_word_counts) if __name__ == '__main__': filename = '/tmp/file.txt' num_processes = 4 # Read the file and split into chunks with open(filename, 'r') as f: lines = f.readlines() chunk_size = len(lines) // num_processes chunks = [lines[i:i + chunk_size] for i in range(0, len(lines), chunk_size)] # Create a queue to store the results from each process output_queue = multiprocessing.Queue() # Create and start the processes processes = [] for i in range(num_processes): process = multiprocessing.Process(target=process_chunk, args=(chunks[i], output_queue)) processes.append(process) process.start() # Get the results from the queue and print them as JSON for _ in range(num_processes): chunk_word_counts = output_queue.get() print(json.dumps(chunk_word_counts)) # Wait for all processes to complete for process in processes: process.join() Answer either 'The student passes' or 'The student fails'.
The student passes.
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | import json import multiprocessing def count_words(lines): """Counts the occurrences of each word in the given lines. Args: lines: A list of strings, where each string represents a line of text. Returns: A dictionary where keys are words and values are their counts. """ word_counts = {} for line in lines: for word in line.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts def process_chunk(chunk_lines, output_queue): """Processes a chunk of lines from the file. This function counts the words in the given chunk and puts the result in the output queue. Args: chunk_lines: A list of strings representing a chunk of the file. output_queue: A multiprocessing.Queue to store the results. """ chunk_word_counts = count_words(chunk_lines) output_queue.put(chunk_word_counts) if __name__ == '__main__': filename = '/tmp/file.txt' num_processes = 4 # Read the file and split into chunks with open(filename, 'r') as f: lines = f.readlines() chunk_size = len(lines) // num_processes chunks = [lines[i:i + chunk_size] for i in range(0, len(lines), chunk_size)] # Create a queue to store the results from each process output_queue = multiprocessing.Queue() # Create and start the processes processes = [] for i in range(num_processes): process = multiprocessing.Process(target=process_chunk, args=(chunks[i], output_queue)) processes.append(process) process.start() # Get the results from the queue and print them as JSON for _ in range(num_processes): chunk_word_counts = output_queue.get() print(json.dumps(chunk_word_counts)) # Wait for all processes to complete for process in processes: process.join() |
Traceback (most recent call last):
File "/usr/src/app/main.py", line 44, in <module>
chunks = [lines[i:i + chunk_size] for i in range(0, len(lines), chunk_size)]
ValueError: range() arg 3 must not be zero
Resulting in output: {}
Testing if the previous output equals the string {'the': 11, 'it': 10, 'was': 10, 'of': 10, 'we': 4, 'times,': 2, 'age': 2, 'epoch': 2, 'season': 2, 'had': 2, 'before': 2, 'us,': 2, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'best': 1, 'worst': 1, 'wisdom,': 1, 'foolishness,': 1, 'belief,': 1, 'incredulity,': 1, 'Light,': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'everything': 1, 'nothing': 1, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
: False
I have setup the docker container to run the model evaluation.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
Write a self-contained Python program that prints a JSON output of how often each word appears in a text file located in /tmp/file.txt. So if the file contains "This is is is, an example" then the program should print to stdout. {"This": 1, "is": 2, "is,":1, "an":1, "example":1} The program should be run by calling /path/to/python_word_count with no arguments. Make it run in parallel on 4 cores at the same time, each taking 1/4 of the file. Print out 4 differnt json dicts, one per line. I'll do the merging.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | import json import multiprocessing def count_words(file_path, start, end): """Counts word occurrences in a specified portion of a file. Args: file_path (str): The path to the text file. start (int): The starting byte position for processing. end (int): The ending byte position for processing. Returns: dict: A dictionary where keys are words and values are their counts. """ word_counts = {} with open(file_path, 'r') as f: f.seek(start) text = f.read(end - start) for word in text.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' # Get file size to divide for parallel processing with open(file_path, 'r') as f: file_size = f.seek(0, 2) chunk_size = file_size // 4 chunks = [(i * chunk_size, (i + 1) * chunk_size) for i in range(4)] # Use a process pool for parallel execution with multiprocessing.Pool(processes=4) as pool: results = pool.starmap(count_words, [(file_path, start, end) for start, end in chunks]) # Output each JSON dictionary on a separate line for result in results: print(json.dumps(result)) |
I extracted the following code from that output:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | import json import multiprocessing def count_words(file_path, start, end): """Counts word occurrences in a specified portion of a file. Args: file_path (str): The path to the text file. start (int): The starting byte position for processing. end (int): The ending byte position for processing. Returns: dict: A dictionary where keys are words and values are their counts. """ word_counts = {} with open(file_path, 'r') as f: f.seek(start) text = f.read(end - start) for word in text.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' # Get file size to divide for parallel processing with open(file_path, 'r') as f: file_size = f.seek(0, 2) chunk_size = file_size // 4 chunks = [(i * chunk_size, (i + 1) * chunk_size) for i in range(4)] # Use a process pool for parallel execution with multiprocessing.Pool(processes=4) as pool: results = pool.starmap(count_words, [(file_path, start, end) for start, end in chunks]) # Output each JSON dictionary on a separate line for result in results: print(json.dumps(result)) |
Below is some student's code. I asked them to parallelize some code. Do not judge if it is correct, I have test cases for that. Just tell me if they tried to parallelize it. import json import multiprocessing def count_words(file_path, start, end): """Counts word occurrences in a specified portion of a file. Args: file_path (str): The path to the text file. start (int): The starting byte position for processing. end (int): The ending byte position for processing. Returns: dict: A dictionary where keys are words and values are their counts. """ word_counts = {} with open(file_path, 'r') as f: f.seek(start) text = f.read(end - start) for word in text.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' # Get file size to divide for parallel processing with open(file_path, 'r') as f: file_size = f.seek(0, 2) chunk_size = file_size // 4 chunks = [(i * chunk_size, (i + 1) * chunk_size) for i in range(4)] # Use a process pool for parallel execution with multiprocessing.Pool(processes=4) as pool: results = pool.starmap(count_words, [(file_path, start, end) for start, end in chunks]) # Output each JSON dictionary on a separate line for result in results: print(json.dumps(result)) Answer either 'The student passes' or 'The student fails'.
The student passes.
Testing if the previous output contains the string student passes
: True
Running the following program:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | import json import multiprocessing def count_words(file_path, start, end): """Counts word occurrences in a specified portion of a file. Args: file_path (str): The path to the text file. start (int): The starting byte position for processing. end (int): The ending byte position for processing. Returns: dict: A dictionary where keys are words and values are their counts. """ word_counts = {} with open(file_path, 'r') as f: f.seek(start) text = f.read(end - start) for word in text.split(): if word in word_counts: word_counts[word] += 1 else: word_counts[word] = 1 return word_counts if __name__ == '__main__': file_path = '/tmp/file.txt' # Get file size to divide for parallel processing with open(file_path, 'r') as f: file_size = f.seek(0, 2) chunk_size = file_size // 4 chunks = [(i * chunk_size, (i + 1) * chunk_size) for i in range(4)] # Use a process pool for parallel execution with multiprocessing.Pool(processes=4) as pool: results = pool.starmap(count_words, [(file_path, start, end) for start, end in chunks]) # Output each JSON dictionary on a separate line for result in results: print(json.dumps(result)) |
{"it": 4, "was": 4, "the": 4, "best": 1, "of": 4, "times,": 2, "worst": 1, "age": 2, "wisdom,": 1, "foolish": 1}
{"ness,": 1, "it": 4, "was": 4, "the": 3, "epoch": 2, "of": 3, "belief,": 1, "incredulity,": 1, "season": 1, "Light,": 1, "th": 1}
{"e": 1, "season": 1, "of": 3, "Darkness,": 1, "it": 2, "was": 2, "the": 2, "spring": 1, "hope,": 1, "winter": 1, "despair,": 1, "we": 1, "had": 1, "everything": 1, "before": 1}
{"us,": 2, "we": 3, "had": 1, "nothing": 1, "before": 1, "were": 2, "all": 2, "going": 2, "direct": 2, "to": 1, "Heaven,": 1, "the": 1, "other": 1, "way": 1}
Resulting in output: {'it': 10, 'was': 10, 'the': 10, 'best': 1, 'of': 10, 'times,': 2, 'worst': 1, 'age': 2, 'wisdom,': 1, 'foolish': 1, 'ness,': 1, 'epoch': 2, 'belief,': 1, 'incredulity,': 1, 'season': 2, 'Light,': 1, 'th': 1, 'e': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'we': 4, 'had': 2, 'everything': 1, 'before': 2, 'us,': 2, 'nothing': 1, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
Testing if the previous output equals the string {'the': 11, 'it': 10, 'was': 10, 'of': 10, 'we': 4, 'times,': 2, 'age': 2, 'epoch': 2, 'season': 2, 'had': 2, 'before': 2, 'us,': 2, 'were': 2, 'all': 2, 'going': 2, 'direct': 2, 'best': 1, 'worst': 1, 'wisdom,': 1, 'foolishness,': 1, 'belief,': 1, 'incredulity,': 1, 'Light,': 1, 'Darkness,': 1, 'spring': 1, 'hope,': 1, 'winter': 1, 'despair,': 1, 'everything': 1, 'nothing': 1, 'to': 1, 'Heaven,': 1, 'other': 1, 'way': 1}
: False