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我正在并行运行我的代码,我的本地配置文件有两个核心。此代码是隐马尔可夫模型中的前向算法。我的代码在这里:

function [ eln_alpha ] = forward_algo( Obs,P,Pi_0 ,Q )
  parpool('local',2);
n = length(Pi_0);
T = length(Obs);
eln_alpha = zeros(n,T,'distributed');
parfor i1=1:n
    eln_alpha(i1,1) = elnproduct( eln(Pi_0(i1)) , eln(Q(i1,1)) );
end;
fi = T / numlabs;
 P ;
spmd       % =================>>>    line 45
    if labindex == 1
        labSend(P, 2);
        labSend(Q, 2);
    end
    if labindex == 2
        P = labReceive(1);
        Q = labReceive(1);
    end
    for t = ((labindex-1)*fi)+1:(labindex * fi)
        if t==1
            t=t+1;
        end
        for j=1:n
            logalpha = NaN;
            for i1=1:n
                logalpha = elnsum(logalpha , elnproduct( eln_alpha(i1,t-1) ,eln(P(i1,j)) ) );
            end;
            eln_alpha(j,t) = elnproduct(logalpha , eln( Q(j,t) ));
        end;
    end
end
end

and的结果elnsum和只是类型中的一个值。elnproductelndouble

我得到这个错误:

使用 forward_algo>(spmd) 时出错(第 45 行)
在工作人员 1 上检测到
错误 2. forward_algo 中的错误(第 45 行)spmd

Caused by:
Error using codistributed/subsasgn (line 131)
Assignment has more non-singleton rhs dimensions than non-singleton subscripts
Error using codistributed/subsasgn (line 131)
Assignment has more non-singleton rhs dimensions than non-singleton subscripts

看起来我并没有尝试将多个值分配到一个左手位置以导致Assignment has more non-singleton rhs dimensions than non-singleton subscripts错误。有人可以帮忙吗?

谢谢你

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