Dear support, a user on my ispconfig platform needs to use lapack libraries. I add them to the server following the instruction in http://php.net/manual/it/book.lapack.php but the php page responds: Fatal error: Class 'Lapack' not found in..... I installed the same libraries on my pc and everithing went well: what kind of configuration do I have to do? Thanks, A.
I don't know from that link where the library will be installed, but find where the files went (eg. under /usr/local/.... ?) and make sure that directory is in php open_basedir (under the website's Options tab). You may/will also need to set php's include path include that.
Hi, This is what I find with "locate lapack" /usr/lib64/R/lib/libRlapack.so /usr/lib64/R/modules/lapack.so /usr/local/include/lapacke.h /usr/local/include/lapacke_config.h /usr/local/include/lapacke_mangling.h /usr/local/include/lapacke_utils.h /usr/local/lib/cmake/lapacke-3.6.1 /usr/local/lib/cmake/lapacke-3.6.1/lapacke-targets-noconfig.cmake /usr/local/lib/cmake/lapacke-3.6.1/lapacke-targets.cmake /usr/local/lib64/liblapack.so /usr/local/lib64/liblapack.so.3 /usr/local/lib64/liblapack.so.3.6.1 /usr/local/lib64/liblapacke.so /usr/local/lib64/cmake/lapack-3.6.1 /usr/local/lib64/cmake/lapacke-3.6.1 /usr/local/lib64/cmake/lapack-3.6.1/lapack-config-version.cmake /usr/local/lib64/cmake/lapack-3.6.1/lapack-config.cmake /usr/local/lib64/cmake/lapack-3.6.1/lapack-targets-noconfig.cmake /usr/local/lib64/cmake/lapack-3.6.1/lapack-targets.cmake /usr/local/lib64/cmake/lapacke-3.6.1/lapacke-config-version.cmake /usr/local/lib64/cmake/lapacke-3.6.1/lapacke-config.cmake /usr/local/lib64/pkgconfig/lapack.pc /usr/local/lib64/pkgconfig/lapacke.pc The php_openbasedir id: /var/www/clients/client13/web18/web:/var/www/clients/client13/web18/private:/var/www/clients/client13/web18/tmp:/var/www/aaa.unimi.it/web:/srv/www/aaa.unimi.it/web:/usr/share/php5:/usr/share/php:/tmp:/usr/share/phpmyadmin:/etc/phpmyadmin:/var/lib/phpmyadmin:/usr/local/lib64:/usr/local/lib:/usr/local/include and this is the php script I use to test: <?php set_include_path('/usr/local/lib64'); #include('/usr/local/lib64/liblapack.so'); $a = array( array( 6.80, -6.05, -0.45, 8.32, -9.67 ), array(-2.11, -3.30, 2.58, 2.71, -5.14 ), array( 5.66, 5.36, -2.70, 4.35, -7.26 ), array( 5.97, -4.44, 0.27, -7.17, 6.08 ), array( 8.23, 1.08, 9.04, 2.14, -6.87 ), ); $b = array( array( 4.02, -1.56, 9.81 ), array( 6.19, 4.00, -4.09 ), array( -8.22, -8.67, -4.57 ), array( -7.57, 1.75, -8.61 ), array( -3.03, 2.86, 8.99 ), ); $result = Lapack::solveLinearEquation($a, $b); ?> But still : Fatal error: Class 'Lapack' not found in /var/www/clients/client13/web18/web/uno.php on line 23
Ah, a .so is binary code which needs loaded via the ini, not included php code. Try adding extension=/usr/local/lib64/liblapack.so to your php.ini then restart php (eg. php-fpm or whatever mode you use) and ignore/remove the set_include_path()/include() stuff.
sorry, nothing changed and in phpinfo() it doesn't show up. mod_fcgid: stderr: PHP Fatal error: Class 'Lapack' not found in /var/www/clients/client13/web18/web/uno.php on line 21
You sure you added that to the correct php.ini? You should find the location in phpinfo() output to verify. Other than that I don't really know, I've not used that myself.
