6 We have collected a number of test problems for MAXIMA, and include
7 below some information on timings in various lisps. The files we used
8 are in the maxima/doc directory of my standard distribution of MAXIMA.
9 These problems are in the files rtest*.mac. Files rtest1.mac through
10 rtest13s.mac contain a total of 808 problems.
12 In the following reference to tests [n,m] mean tests rtest`n'.mac
13 through rtest`m'.mac inclusive. The following times were obtained on
14 a Sun 280 (rascal.ics.utexas.edu).
16 I used MAXIMA version 4.71, AKCL 1.34, and LUCID 2.1.
18 TESTS AKCL LUCID EXPLORER I
21 [1,13s] 278.63 388.14 511.1
23 4 Users(cpu) 324.86 500.60
24 4 Users(tot)1478.64 2318.49
27 Tests were run with the output directed to a file. The tests
28 represent a wide spectrum of problems for MAXIMA, and are the standard
29 verification suite, which I use after making changes to the underlying
30 lisp or to the MAXIMA files, to help determine correctness. The files
31 consist of alternating problem, and answer, with the result of the
32 problem being compared against the answer.
34 In neither lisp did I use the floating point chip. This is because the
35 saved image is often used on machines without such a chip. Generally
36 the LUCID floating point calculations were single float and the AKCL
37 ones double float. I don't believe however that the tests are
38 very floating point intensive.
40 The 4 Users line is the Cpu time for the same program but running in 4
41 processes simultaneously. The AKCL probably degraded less from the
42 single user time (16% as opposed to 29% for Lucid), because a large
43 amount of the maxima image is shared between processes.
46 The complete list of files is
47 '("rtest1" "rtest1a" "rtest2" "rtest3" "rtest4" "rtest5"
48 "rtest6" "rtest6a" "rtest6b" "rtest7" "rtest8" "rtest9"
49 "rtest9a" "rtest10" "rtest11" "rtest12" "rtest13" "rtest13s")
51 It is still the experience of the author, that lisp machines do show
52 important gains on very large problems, much larger than those done
56 They are included in /usr2/ftp/pub/maxima-xx.tar.Z on rascal.