I realize there are many places I can ask this question at but I thought I'd try here. I've already seemingly attained as much help as I can from the good people at Maxima.
I run Maxima with SBCL and consistently get errors;
INFO: Binding stack guard page unprotected
Binding stack guard page temporarily disabled: proceed with caution
Maxima encountered a Lisp error:
Binding stack exhausted.
PROCEED WITH CAUTION.
Automatically continuing.
To enable the Lisp debugger set *debugger-hook* to nil.
INFO: Binding stack guard page reprotected
I've modified the call to Maxima (its executable) by adding larger values for the dynamic space size and control stack size, and I have looked at ./.../sbcl -help for any ideas of arguments to add to the $MAXIMA_LISP_OPTIONS in the maxima executable.
Additionally, I usually do these just before I run it (though I imagine they are unnecessary as the OS is smart, well maybe the last one needs to be fiddled with);
sudo fstrim -v /
echo 3 | sudo tee /proc/sys/vm/drop_caches
echo 262144 | sudo tee /proc/sys/vm/max_map_count
and after a couple calculations while doing my Maxima work, I throw in a couple of
:lisp (sb-ext:gc :full t)
in the hopes of avoiding this error. I don't know lisp that well and certainly don't understand all there is about garbage collection.
My calculations are somewhat intensive and recursive, though I am utilizing memoization in the Maxima work. My computer is described by inxi -b as,
System: Host: XXX-MacBookPro Kernel: 4.10.0-33-generic x86_64 (64 bit) Desktop: Cinnamon 3.4.6
Distro: Linux Mint 18.2 Sonya
Machine: System: Apple (portable) product: MacBookPro11 3 v: 1.0
Mobo: Apple model: Mac-2BD1B313 v: MacBookPro11 3
Bios: Apple v: MBP112.88Z.0138.B25.1702171721 date: 02/17/2017
CPU: Quad core Intel Core i7-4980HQ (-HT-MCP-) speed/max: 1402/4000 MHz
Graphics: Card: NVIDIA GK107M [GeForce GT 750M Mac Edition]
Display Server: X.Org 1.18.4 drivers: nvidia (unloaded: fbdev,vesa,nouveau)
Resolution: [email protected]
GLX Renderer: GeForce GT 750M/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 375.66
Network: Card-1: Broadcom BCM4360 802.11ac Wireless Network Adapter driver: wl
Card-2: Broadcom NetXtreme BCM57762 Gigabit Ethernet PCIe driver: tg3
Drives: HDD Total Size: 1000.6GB (17.5% used)
Info: Processes: 291 Uptime: 43 min Memory: 3366.6/15953.7MB Client: Shell (bash) inxi: 2.2.35
and my Maxima and SBCL are built from GIT and are quite new ~ about 2 weeks, and from head and have passed all their make tests. Additionally my swap looks like;
XXX@XXX-MacBookPro ~/ResearchWC $ cat /proc/swaps
Filename Type Size Used Priority
/70GiB.swap file 73400316 0 -2
/dev/sda7 partition 25564776 0 -1
and I often am basically out of memory and around 20-30G into swap.
Usually it seems to hang eventually (after say 100 hours, as I notice htop ceases showing certain activity and the fan doesn't go up and down) and I think the exhaustion errors are sometimes buried in the embedded recursive calls. I got this error message above because I avoided calling the function at the recursion level I want and instead built them up "by hand" at the terminal. E.G., instead of just calling something like fib(10), I instead called successively fib(1), fib(2), fib(3), where each previous value was memoized.
I have the time but seemingly don't know how to maximize my swap - watching htop I have never seen it use more than say ~25%.
1.) Does anyone know what else I can do with SBCL to avoid these errors?
2.) Would another lisp be a better one to run in these situations, e.g. ecl, cml, etc.?
Thanks in advance for any advice, and I can provide more details if needed.
UPDATE
After upping the dynamic space size , stack size, and the binding stack size, I was up against the heap limit instead of the binding stack this time when it crashed. Attached is the output of backtrace (Not sure what the two registers pc and fp are... - program counter and frame pointer?). I ran this with trace(residue,taylor) as well but never saw anything fishy...
ldb> backtrace
Backtrace:
0: SB-BIGNUM::MULTIPLY-BIGNUM-AND-FIXNUM, pc = 0x21cb1336, fp = 0x7ffff3943f18
1: SB-KERNEL::TWO-ARG-*, pc = 0x21cb00a7, fp = 0x7ffff3943f98
2: MAXIMA::CTIMES, pc = 0x21e076b4, fp = 0x7ffff3943fc0
3: MAXIMA::PCTIMES, pc = 0x21de5f4c, fp = 0x7ffff3943ff0
4: MAXIMA::PCTIMES1, pc = 0x21e78f1e, fp = 0x7ffff3944048
5: MAXIMA::PCTIMES, pc = 0x21de6033, fp = 0x7ffff3944078
6: MAXIMA::PCETIMES1, pc = 0x21fe0560, fp = 0x7ffff39440d8
7: MAXIMA::PTIMES1, pc = 0x21f457e5, fp = 0x7ffff3944148
8: MAXIMA::PTIMES, pc = 0x21db6561, fp = 0x7ffff3944180
9: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39441b8
10: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39441f0
11: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944228
12: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944260
13: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944298
14: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39442d0
15: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944308
16: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944340
17: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944378
18: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39443b0
19: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39443e8
20: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944420
21: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944458
22: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944490
23: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39444c8
24: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944500
25: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944538
26: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944570
27: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39445a8
28: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39445e0
29: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944618
30: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944650
31: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944688
32: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39446c0
33: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39446f8
34: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944730
35: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944768
36: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39447a0
37: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39447d8
38: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944810
39: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944848
40: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944880
41: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39448b8
42: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39448f0
43: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944928
44: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944960
45: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944998
46: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39449d0
47: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944a08
48: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944a40
49: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944a78
50: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ab0
51: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944ae8
52: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944b20
53: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944b58
54: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944b90
55: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944bc8
56: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944c00
57: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944c38
58: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944c70
59: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944ca8
60: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ce0
61: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944d18
62: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944d50
63: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944d88
64: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944dc0
65: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944df8
66: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944e30
67: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944e68
68: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ea0
69: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944ed8
70: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944f10
71: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944f48
72: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944f80
73: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3944fb8
74: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3944ff0
75: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945028
76: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945060
77: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945098
78: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39450d0
79: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945108
80: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945140
81: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945178
82: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39451b0
83: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39451e8
84: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945220
85: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945258
86: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945290
87: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39452c8
88: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945300
89: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945338
90: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945370
91: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39453a8
92: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39453e0
93: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945418
94: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945450
95: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff3945488
96: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff39454c0
97: MAXIMA::PSIMP, pc = 0x21dd0617, fp = 0x7ffff39454f8
98: MAXIMA::PALGSIMP, pc = 0x22166db7, fp = 0x7ffff3945530
There are Clisp implementations for many platforms including MS Windows and Unix-like systems. GCL versions starting with 2.4.3 can be built with readline support, so Maxima has advanced command-line editing facilities when built with it. GCL produces a fast Maxima executable.
Steel Bank Common Lisp (SBCL), is a fork of CMUCL which differs in some minor details, but most notably, it is simpler to rebuild SBCL than CMUCL. There are SBCL implementations for Linux, several BSD systems, Solaris, Mac OS X and MS Windows. rmaxima is recommended for use with SBCL.
When Maxima is compiled, the Lisp implementation is selected by giving to the configure script an argument of the form --enable-foolisp, where "foolisp" is the name of the Lisp implementation. ./configure --help shows a list of the Lisp implementations accepted by configure (among other options).
Maxima can be compiled with SBCL, Clisp, CCL, GCL, CMUCL, ECL, Scieneer Common Lisp (SCL), Allegro Common Lisp (ACL) and ABCL. Ports to other ANSI Common Lisps should be straightforward and are welcome; please post a message on the Maxima mailing list if you are interested in working on a port.
The most common cause of bind stack overflow is a recursive function which calls itself indefinitely (i.e. a bug in the recursion). The second most common cause is a recursive function which is programmed correctly, but calls itself too many times for the Lisp implementation to handle it.
I forget what the stack limit is for SBCL -- it might be 8192 but that's just a guess. You could probably determine it by experiment (if not by reading the SBCL documentation).
In either case you can try to figure out which function or functions are causing trouble via
trace (mymaximafun1, mymaximafun2, ...);
for Maxima functions and/or
:lisp (trace mylispfun1 mylispfun2 ...)
for Lisp functions.
About the second problem, you can try to avoid deep recursions by reworking recursive functions as iterations.
You mentioned that you have long-running computations. A strategy to lessen the effect of crashes is to call the save
function to save the program state every now and then, e.g.:
save ("mycheckpointfile.lisp", all);
Note that save
takes a lot of options, so maybe take a look at the documentation via ? save
.
You can automatically generate file names via some recipe such as file_name : printf(false, "mycheckpointfile~d.lisp", 1000 + random(9000))
which generates a random 4-digit number and pastes it into the file name. Of course there are many such recipes.
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