Run functions in parallel c++

-3

I have a class A, it has 4 methods. I'm creating two instances a,b. What I need is to run both a.function 1 to 4 and b.function 1 to 4 at the same time in c++?

edited Nov 14 '18 at 6:27

Shrikanth N

510211

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

1

You need to use threads.

– paddy
Nov 14 '18 at 4:59

Threads, perhaps? ta = std::thread(&A::function, &a); tb = std::thread(&A::function, &b); ta.join(); tb.join();

– Severin Pappadeux
Nov 14 '18 at 5:00

Have you tried before asking this question?

– Ved Prakash
Nov 14 '18 at 5:04

Pay attention that the situation becomes very difficult if you have a data race, for example if both threads try to modify the same variable.

– Damien
Nov 14 '18 at 9:30

add a comment |

-3

I have a class A, it has 4 methods. I'm creating two instances a,b. What I need is to run both a.function 1 to 4 and b.function 1 to 4 at the same time in c++?

edited Nov 14 '18 at 6:27

Shrikanth N

510211

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

1

You need to use threads.

– paddy
Nov 14 '18 at 4:59

Threads, perhaps? ta = std::thread(&A::function, &a); tb = std::thread(&A::function, &b); ta.join(); tb.join();

– Severin Pappadeux
Nov 14 '18 at 5:00

Have you tried before asking this question?

– Ved Prakash
Nov 14 '18 at 5:04

Pay attention that the situation becomes very difficult if you have a data race, for example if both threads try to modify the same variable.

– Damien
Nov 14 '18 at 9:30

add a comment |

-3

I have a class A, it has 4 methods. I'm creating two instances a,b. What I need is to run both a.function 1 to 4 and b.function 1 to 4 at the same time in c++?

edited Nov 14 '18 at 6:27

Shrikanth N

510211

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

I have a class A, it has 4 methods. I'm creating two instances a,b. What I need is to run both a.function 1 to 4 and b.function 1 to 4 at the same time in c++?

c++

edited Nov 14 '18 at 6:27

Shrikanth N

510211

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

edited Nov 14 '18 at 6:27

Shrikanth N

510211

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

edited Nov 14 '18 at 6:27

Shrikanth N

510211

edited Nov 14 '18 at 6:27

Shrikanth N

510211

edited Nov 14 '18 at 6:27

Shrikanth N

510211

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

asked Nov 14 '18 at 4:57

Ragavan Kalatharan

1

You need to use threads.

– paddy
Nov 14 '18 at 4:59

Threads, perhaps? ta = std::thread(&A::function, &a); tb = std::thread(&A::function, &b); ta.join(); tb.join();

– Severin Pappadeux
Nov 14 '18 at 5:00

Have you tried before asking this question?

– Ved Prakash
Nov 14 '18 at 5:04

Pay attention that the situation becomes very difficult if you have a data race, for example if both threads try to modify the same variable.

– Damien
Nov 14 '18 at 9:30

add a comment |

1

You need to use threads.

– paddy
Nov 14 '18 at 4:59

Threads, perhaps? ta = std::thread(&A::function, &a); tb = std::thread(&A::function, &b); ta.join(); tb.join();

– Severin Pappadeux
Nov 14 '18 at 5:00

Have you tried before asking this question?

– Ved Prakash
Nov 14 '18 at 5:04

Pay attention that the situation becomes very difficult if you have a data race, for example if both threads try to modify the same variable.

– Damien
Nov 14 '18 at 9:30

You need to use threads.

– paddy
Nov 14 '18 at 4:59

Threads, perhaps? ta = std::thread(&A::function, &a); tb = std::thread(&A::function, &b); ta.join(); tb.join();

– Severin Pappadeux
Nov 14 '18 at 5:00

Have you tried before asking this question?

– Ved Prakash
Nov 14 '18 at 5:04

Pay attention that the situation becomes very difficult if you have a data race, for example if both threads try to modify the same variable.

– Damien
Nov 14 '18 at 9:30

add a comment |

1 Answer
1

active

oldest

votes

It seem to me, what you are asking for is multi-threading. For C++ you may rely on native thread support or libraries like boost,which is cross platform and is widely used in industry. High level languages like Java and C# have the functionality for multi threading in built ,which is much easier to do this.

You can implement this is with the future library (#include <future>).

If your functions are

int my_func(int param1, int param2, int param3); 
int my_second_func(int param1, int param2, int param3);

Then you can use future to run the functions asynchronously as follows:

std::future<int> f = std::async(std::launch::async, my_second_func, arg1, arg2, arg3);
int result1 = my_func(arg1, arg2, arg3);
int result2 = f.get();

Where the functions are evaluated in separate threads, asynchronously (in parallel).

edited Nov 14 '18 at 8:05

piet.t

10k63245

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

2

C++ has native thread support also.

– bolov
Nov 14 '18 at 5:28

1

I see . Thank You .

– Md. Mokammal Hossen Farnan
Nov 14 '18 at 5:50

1

C+11 and above has lot of capabilities in-built that were earlier provided by boost libraries. You can check out the link: thispointer.com/…

– Shrikanth N
Nov 14 '18 at 6:01

add a comment |

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1 Answer
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1 Answer
1

active

oldest

votes

You can implement this is with the future library (#include <future>).

If your functions are

int my_func(int param1, int param2, int param3); 
int my_second_func(int param1, int param2, int param3);

Then you can use future to run the functions asynchronously as follows:

std::future<int> f = std::async(std::launch::async, my_second_func, arg1, arg2, arg3);
int result1 = my_func(arg1, arg2, arg3);
int result2 = f.get();

Where the functions are evaluated in separate threads, asynchronously (in parallel).

edited Nov 14 '18 at 8:05

piet.t

10k63245

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

2

C++ has native thread support also.

– bolov
Nov 14 '18 at 5:28

1

I see . Thank You .

– Md. Mokammal Hossen Farnan
Nov 14 '18 at 5:50

1

C+11 and above has lot of capabilities in-built that were earlier provided by boost libraries. You can check out the link: thispointer.com/…

– Shrikanth N
Nov 14 '18 at 6:01

add a comment |

You can implement this is with the future library (#include <future>).

If your functions are

int my_func(int param1, int param2, int param3); 
int my_second_func(int param1, int param2, int param3);

Then you can use future to run the functions asynchronously as follows:

std::future<int> f = std::async(std::launch::async, my_second_func, arg1, arg2, arg3);
int result1 = my_func(arg1, arg2, arg3);
int result2 = f.get();

Where the functions are evaluated in separate threads, asynchronously (in parallel).

edited Nov 14 '18 at 8:05

piet.t

10k63245

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

2

C++ has native thread support also.

– bolov
Nov 14 '18 at 5:28

1

I see . Thank You .

– Md. Mokammal Hossen Farnan
Nov 14 '18 at 5:50

1

C+11 and above has lot of capabilities in-built that were earlier provided by boost libraries. You can check out the link: thispointer.com/…

– Shrikanth N
Nov 14 '18 at 6:01

add a comment |

You can implement this is with the future library (#include <future>).

If your functions are

int my_func(int param1, int param2, int param3); 
int my_second_func(int param1, int param2, int param3);

Then you can use future to run the functions asynchronously as follows:

std::future<int> f = std::async(std::launch::async, my_second_func, arg1, arg2, arg3);
int result1 = my_func(arg1, arg2, arg3);
int result2 = f.get();

Where the functions are evaluated in separate threads, asynchronously (in parallel).

edited Nov 14 '18 at 8:05

piet.t

10k63245

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

You can implement this is with the future library (#include <future>).

If your functions are

int my_func(int param1, int param2, int param3); 
int my_second_func(int param1, int param2, int param3);

Then you can use future to run the functions asynchronously as follows:

std::future<int> f = std::async(std::launch::async, my_second_func, arg1, arg2, arg3);
int result1 = my_func(arg1, arg2, arg3);
int result2 = f.get();

Where the functions are evaluated in separate threads, asynchronously (in parallel).

edited Nov 14 '18 at 8:05

piet.t

10k63245

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

edited Nov 14 '18 at 8:05

piet.t

10k63245

edited Nov 14 '18 at 8:05

piet.t

10k63245

edited Nov 14 '18 at 8:05

piet.t

10k63245

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

answered Nov 14 '18 at 5:16

Md. Mokammal Hossen Farnan

587320

2

C++ has native thread support also.

– bolov
Nov 14 '18 at 5:28

1

I see . Thank You .

– Md. Mokammal Hossen Farnan
Nov 14 '18 at 5:50

1

C+11 and above has lot of capabilities in-built that were earlier provided by boost libraries. You can check out the link: thispointer.com/…

– Shrikanth N
Nov 14 '18 at 6:01

add a comment |

2

C++ has native thread support also.

– bolov
Nov 14 '18 at 5:28

1

I see . Thank You .

– Md. Mokammal Hossen Farnan
Nov 14 '18 at 5:50

1

C+11 and above has lot of capabilities in-built that were earlier provided by boost libraries. You can check out the link: thispointer.com/…

– Shrikanth N
Nov 14 '18 at 6:01

C++ has native thread support also.

– bolov
Nov 14 '18 at 5:28

I see . Thank You .

– Md. Mokammal Hossen Farnan
Nov 14 '18 at 5:50

C+11 and above has lot of capabilities in-built that were earlier provided by boost libraries. You can check out the link: thispointer.com/…

– Shrikanth N
Nov 14 '18 at 6:01

add a comment |

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