To generate code for 'simplefn' using OpenBLAS routines, first define a MATLAB class openblascallback.m as shown below (adapted from the example in the documentation below). Note that the library shared object and header locations, as well as the header name, depend on the Operating System, and specific BLAS library or package installed:
classdefopenblascallback < coder.BLASCallback
方法（静止的）
功能updateBuildInfo(buildInfo, buildctx)
libPriority ='';
libPreCompiled = true;
libLinkOnly = true;
libname ='libopenblas.so';
libPath = fullfile('/usr/lib/x86_64-linux-gnu'）；
incpath = fullfile（'/usr/include/x86_64-linux-gnu'）；
buildinfo.addlinkflags（'-lpthread'）；
buildInfo.addLinkObjects(libName, libPath,...
libPriority, libPreCompiled, libLinkOnly);
buildinfo.addincludepaths（incpath）;
end
功能标题=getHeaderFilename()
标题='cblas.h';
end
功能inttypename = getBlasintTypename（）
inttypename ='blasint';
end
end
end
然后创建以下代码生成脚本simplefn_script.m：
% SIMPLEFN_SCRIPT Generate static library simplefn from simplefn.
%
% Script generated from project 'simplefn.prj' on 04-Dec-2020.
%
% See also CODER, CODER.CONFIG, CODER.TYPEOF, CODEGEN.
%% Create configuration object of class 'coder.EmbeddedCodeConfig'.
cfg=代码r.config('lib','ecoder',false);
cfg.GenerateReport=真的;
CFG. -Toolchain='GNU GCC/G ++ |Gmake（64位Linux）';
cfg.CustomBLASCallback=“ OpenBlascallback”;
%%调用MATLAB编码器。
代码gen-configcfgsimplefn-args{zeros(1000),zeros(1000)}-报告
Running simplefn_script.m should successfully generate code with OpenBLAS routines. The simplefn.c now contains:
空白SimpleFN（const double inputarg1 [1000000]，const double inputarg2 [1000000]，
double outputArg1[1000000])
{
cblas_dgemm（cblascolmajor，cblasnotrans，cblasnotrans，（blasint）1000，（blasint）
1000，（blasint）1000、1.0和inputarg1 [0]，（blasint）1000，
＆inputarg2 [0]，（blasint）1000、0.0和outputarg1 [0]，（blasint）1000）;
}
