MPI 集体函数 MPI_Allgather MPI_Allgatherv MPI_Allreduce MPI_Alltoall MPI_Alltoallv MPI_Alltoallw MPI_Barrier MPI_Bcast MPI_Gather MPI_Gatherv MPI_Iallgather MPI_Iallreduce MPI_Ibarrier MPI_Ibcast MPI_Igather MPI_Igatherv MPI_Ireduce ...
MPI_GATHERV是一种消息传递接口(Message Passing Interface,MPI)函数,用于在并行计算中将数据从多个进程收集到一个进程中。它可以用于在集合通信模式下,将不同大小的数...
Gatherv:收集不同长度的数据块,num_n,displs,lev_n由root进程给出CALLMPI_Gatherv(lev,num,mpi_integer4,lev_n,num_n,displs,mpi_integer4,root,MPI_COMM_WORLD,ierr)IF(OnMonitor)PRINT*,'Gatherv lev result=',lev_n!---!3.1MPI_Scatterv的测试例子!---ALLOCATE(lev22(1:num))CALLMPI_Scatterv(lev...
MPI_Gatherv:收集不同长度的数据块。与MPI_Gather类似,但允许每个进程发送的数据块长度不同,并且根进程可以任意排放数据块在recvbuf中的位置。 MPI_Gather MPI_Gather(void*sendbuf,intsendcnt,MPI_Datatype sendtype,void*recvbuf,intrecvcnts,MPI_Datatype recvtype,introot,MPI_Comm comm) 收集相同长度的数据块...
这个矩阵具有以下特性： 每行中的整数从左到右是排序的。 每行的第一个数大于上一行的最后一个整数。
主进程在执行MPI_Gatherv之后,可能还要对缓冲区的内存进行memcpy。这个时候一定注意字节的大小问题。MPI_Gatherv等函数的数据量大小没有算入类型本身的大小。而memcpy等函数是按照字节数计算的。两者还相差一个倍数关系。 分享到: 设置网页在浏览器标签页上显示的图标 | openstack开发部署环境 2012-10-20 14:01...
Hello, I receive the following message when I call MPI::COMM_WORLD.Gatherv with large data : Assertion failed in file ../../i_rtc_cache.c at line
I implemented some `MPI_Scatterv` and `MPI_Gatherv` routines for a parallel matrix matrix multiplication. Everything works fine for small matrix sizes up to N = 180, if I exceed this size, e.g. N = 184 MPI throws some errors while using `MPI_Scatterv`. For the 2D S...
MPI_Gather MPI_Gatherv MPI_Iallgather MPI_Iallreduce MPI_Ibarrier MPI_Ibcast MPI_Igather MPI_Igatherv MPI_Ireduce MPI_Iscatter MPI_Iscatterv MPI_Reduce MPI_Scatter MPI_Scatterv MPI_Exscan MPI_Op_create MPI_Op_free MPI_Reduce_local ...
MPI 集体函数 MPI_Allgather MPI_Allgatherv MPI_Allreduce MPI_Alltoall MPI_Alltoallv MPI_Alltoallw MPI_Barrier MPI_Bcast MPI_Gather MPI_Gatherv MPI_Iallgather MPI_Iallreduce MPI_Ibarrier MPI_Ibcast MPI_Igather MPI_Igatherv MPI_Ireduce ...