mpi

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How to detect non-busy machines over a LAN automatically?

I\'m w开发者_Python百科riting an MPI program to be run over a local area network. These machines can be ssh\'d to by any student at any time.[详细]

2023-04-06 18:52 分类：问答
Strange same numbers

I use some random numbers as initial values for my \'metaheuristics optimization\' calculations. I run my same optimization program on different computers using MPI. I surprisingly obtained a lot of s[详细]

2023-04-06 07:10 分类：问答
How to send columns of a matrix via Boost MPI using C++ STL vectors?

I want to send multiple columns of a matrix stored as in STL vector form vector < vector < double > > A ( 10, vector <double> (10));[详细]

2023-04-06 04:10 分类：问答
MPI Number of processors?

Following is my code in MPI, which I run it over a core i7 CPU (quad core), but the problem is it shows me that it\'s running under 1 processor CPU, which has to be 4.[详细]

2023-04-05 09:23 分类：问答
screen with mpirun

MPI works fine: $ mpirun -np 2 -H compute-0-0,compute-0-1 echo 1 1 1 However it does not work when launched via screen:[详细]

2023-04-04 18:26 分类：问答
Receiving data from any host in MPI

I used MPI_Irecv to recieve data from a certain host in MPI. By using \"rank of source\" in the input parameters of the function, I have to define 开发者_JAVA百科which host I want to receive data from[详细]

2023-04-04 02:59 分类：问答
CPU usage percentage in MPI applications

I used开发者_如何学Go MPICH2. When I start my applications by using mpiexec, they run on the remote hosts (Win7) have 25% CPU usage. I want to increase the percentage if this can improve my applicatio[详细]

2023-04-03 18:20 分类：问答
Sending data to randomly selected hosts by using MPI

I have 41 computers that used MPI on the same local area network. MPI works good on these machines without any problem. I want to use one of them for sending a float number to the other 40 computers b[详细]

2023-04-03 09:12 分类：问答
Concurrent receiveing/sending from/to one sender/receiver

I wonder if it is possible to concurrent receive the message from one sender, and other way round to concurrent sent to one receiver. And if yes how it will behave?[详细]

2023-04-03 02:08 分类：问答
MPI + Function Pointers?

If I\'m running the same binary (which implies the same architecture) on multiple nodes of a Beowulf cluster in an MPI configuration, is it safe to pass function pointers via MPI as a way of telling a[详细]

2023-04-03 00:54 分类：问答