The MOSEK command line tool Version 7.0 (Revision 141)

48 CHAPTER 5. THE OPTIMIZERS FOR CONTINUOUS PROBLEMS
Optimizer Associated Default
parameter
priority
MSK OPTIMIZER INTPNT MSK IPAR CONCURRENT PRIORITY INTPNT 4
MSK OPTIMIZER FREE SIMPLEX MSK IPAR CONCURRENT PRIORITY FREE SIMPLEX 3
MSK OPTIMIZER PRIMAL SIMPLEX MSK IPAR CONCURRENT PRIORITY PRIMAL SIMPLEX 2
MSK OPTIMIZER DUAL SIMPLEX MSK IPAR CONCURRENT PRIORITY DUAL SIMPLEX 1
Table 5.4: Default priorities for optimizer selection in concurrent optimization.
5.6.3.1 Concurrent optimization from the command line
The command line
mosek afiro.mps \
-d MSK IPAR OPTIMIZER MSK OPTIMIZER CONCURRENT \
-d MSK IPAR CUNCURRENT NUM OPTIMIZERS 2
produces the following (edited) output:
...
Number of concurrent optimizers : 2
Optimizer selected for thread number 0 : interior-point (threads = 1)
Optimizer selected for thread number 1 : free simplex
Total number of threads required : 2
...
Thread number 1 (free simplex) terminated first.
...
Concurrent optimizer terminated. CPU Time: 0.03. Real Time: 0.00.
As indicated in the log information, the interior-point and the free simplex optimizers are employed
concurrently. However, only the output from the optimizer having the highest priority is printed to
the screen. In the example this is the interior-point optimizer.
The line
Total number of threads required : 2
indicates the number of threads used. If the concurrent optimizer should be effective, this should be
lower than the number of CPUs.
In the above example the simplex optimizer finishes first as indicated in the log information.