Hello,
I have tried to test the problem for many times and the error randomly
(but usually) occurred which ceased the program. Unfortunately, this error
was also found to reproduce in other computers under cygwin.
This time I just tried to print the system time for 10 times. The
following are the 10 trials and the program never finishes successfully.
********************************************************************************************************
Script
1. system("date")
2.
3. do i = 0, 10
4. print(i + " " + systemfunc("date"))
5. end do
********************************************************************************************************
1.
Tue Jul 27 08:38:46 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
(0) 0 Tue Jul 27 08:38:46 CST 2010
(0) 1 Tue Jul 27 08:38:47 CST 2010
(0) 2 Tue Jul 27 08:38:47 CST 2010
(0) 3 Tue Jul 27 08:38:47 CST 2010
(0) 4 Tue Jul 27 08:38:47 CST 2010
(0) 5 -999
(0) 6 -999
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
2.
Tue Jul 27 08:38:51 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
(0) 0 Tue Jul 27 08:38:51 CST 2010
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
3.
Tue Jul 27 08:38:54 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
4.
Tue Jul 27 08:38:57 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
5.
Tue Jul 27 08:38:59 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
6.
Tue Jul 27 08:39:08 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
7.
Tue Jul 27 08:39:12 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
(0) 0 Tue Jul 27 08:39:12 CST 2010
(0) 1 Tue Jul 27 08:39:13 CST 2010
(0) 2 Tue Jul 27 08:39:13 CST 2010
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
8.
Tue Jul 27 08:39:20 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
9.
Tue Jul 27 08:39:23 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
10.
Tue Jul 27 08:39:26 CST 2010
Copyright (C) 1995-2010 - All Rights Reserved
University Corporation for Atmospheric Research
NCAR Command Language Version 5.2.1
The use of this software is governed by a License Agreement.
See http://www.ncl.ucar.edu/ for more details.
(0) 0 Tue Jul 27 08:39:26 CST 2010
fatal:systemfunc: cannot create child process:[errno=11]
fatal:Execute: Error occurred at or near line 4 in file
program_scripts/t_test/test_ncl521.ncl
********************************************************************************************************
Regards,
Hoffman
2010/7/27 Mary Haley <haley@ucar.edu>
> Hi,
>
> I was unable to reproduce your problem under Cygwin and NCL 5.2.1. I had
> just upgraded
> my Cygwin last week, too.
>
> Do you actually get the error right away, after just a few iterations? Your
> program ran all the
> way to i=999 on my box.
>
> --Mary
>
>
> On Jul 26, 2010, at 8:22 AM, Hoffman Cheung wrote:
>
> Hello,
>
> I have encountered a problem when executing the NCL script under cygwin (in
> Windows Vista/7) in the two latest versions (i.e. NCL 5.2.0 and 5.2.1). When
> my program try to use the function systemfunc, it always ends
> accidentally due to an unexpected error. An example in given below:
>
>
> ************************************************************************************
> Script (test_ncl521.ncl)
>
> 1. ; script test_ncl521.ncl
> 2.
> 3. system("date")
> 4. print(sprinti("%03i",ispan(-100,100,1)))
> 5.
> 6. system("date")
> 7. do n = -10, 10
> 8. print("n = " + n)
> 9. end do
> 10.
> 11. system("date")
> 12. do i = 0, 999
> 13. print(i + " " + systemfunc("date"))
> 14. end do
>
>
>
> ************************************************************************************
> Output
>
>
> Mon Jul 26 21:33:24 2010
> Mon Jul 26 21:33:24 2010
> Mon Jul 26 21:33:24 2010
> Copyright (C) 1995-2010 - All Rights Reserved
> University Corporation for Atmospheric Research
> NCAR Command Language Version 5.2.1
> The use of this software is governed by a License Agreement.
> See http://www.ncl.ucar.edu/ for more details.
> (0) -100
> (1) -99
> (2) -98
> (3) -97
> (4) -96
> (5) -95
> (6) -94
> (7) -93
> (8) -92
> (9) -91
> (10) -90
> (11) -89
> (12) -88
> (13) -87
> (14) -86
> (15) -85
> (16) -84
> (17) -83
> (18) -82
> (19) -81
> (20) -80
> (21) -79
> (22) -78
> (23) -77
> (24) -76
> (25) -75
> (26) -74
> (27) -73
> (28) -72
> (29) -71
> (30) -70
> (31) -69
> (32) -68
> (33) -67
> (34) -66
> (35) -65
> (36) -64
> (37) -63
> (38) -62
> (39) -61
> (40) -60
> (41) -59
> (42) -58
> (43) -57
> (44) -56
> (45) -55
> (46) -54
> (47) -53
> (48) -52
> (49) -51
> (50) -50
> (51) -49
> (52) -48
> (53) -47
> (54) -46
> (55) -45
> (56) -44
> (57) -43
> (58) -42
> (59) -41
> (60) -40
> (61) -39
> (62) -38
> (63) -37
> (64) -36
> (65) -35
> (66) -34
> (67) -33
> (68) -32
> (69) -31
> (70) -30
> (71) -29
> (72) -28
> (73) -27
> (74) -26
> (75) -25
> (76) -24
> (77) -23
> (78) -22
> (79) -21
> (80) -20
> (81) -19
> (82) -18
> (83) -17
> (84) -16
> (85) -15
> (86) -14
> (87) -13
> (88) -12
> (89) -11
> (90) -10
> (91) -09
> (92) -08
> (93) -07
> (94) -06
> (95) -05
> (96) -04
> (97) -03
> (98) -02
> (99) -01
> (100) 000
> (101) 001
> (102) 002
> (103) 003
> (104) 004
> (105) 005
> (106) 006
> (107) 007
> (108) 008
> (109) 009
> (110) 010
> (111) 011
> (112) 012
> (113) 013
> (114) 014
> (115) 015
> (116) 016
> (117) 017
> (118) 018
> (119) 019
> (120) 020
> (121) 021
> (122) 022
> (123) 023
> (124) 024
> (125) 025
> (126) 026
> (127) 027
> (128) 028
> (129) 029
> (130) 030
> (131) 031
> (132) 032
> (133) 033
> (134) 034
> (135) 035
> (136) 036
> (137) 037
> (138) 038
> (139) 039
> (140) 040
> (141) 041
> (142) 042
> (143) 043
> (144) 044
> (145) 045
> (146) 046
> (147) 047
> (148) 048
> (149) 049
> (150) 050
> (151) 051
> (152) 052
> (153) 053
> (154) 054
> (155) 055
> (156) 056
> (157) 057
> (158) 058
> (159) 059
> (160) 060
> (161) 061
> (162) 062
> (163) 063
> (164) 064
> (165) 065
> (166) 066
> (167) 067
> (168) 068
> (169) 069
> (170) 070
> (171) 071
> (172) 072
> (173) 073
> (174) 074
> (175) 075
> (176) 076
> (177) 077
> (178) 078
> (179) 079
> (180) 080
> (181) 081
> (182) 082
> (183) 083
> (184) 084
> (185) 085
> (186) 086
> (187) 087
> (188) 088
> (189) 089
> (190) 090
> (191) 091
> (192) 092
> (193) 093
> (194) 094
> (195) 095
> (196) 096
> (197) 097
> (198) 098
> (199) 099
> (200) 100
> (0) n = -10
> (0) n = -9
> (0) n = -8
> (0) n = -7
> (0) n = -6
> (0) n = -5
> (0) n = -4
> (0) n = -3
> (0) n = -2
> (0) n = -1
> (0) n = 0
> (0) n = 1
> (0) n = 2
> (0) n = 3
> (0) n = 4
> (0) n = 5
> (0) n = 6
> (0) n = 7
> (0) n = 8
> (0) n = 9
> (0) n = 10
> (0) 0 Mon Jul 26 21:33:24 2010
> (0) 1 Mon Jul 26 21:33:24 2010
> (0) 2 Mon Jul 26 21:33:24 2010
> (0) 3 Mon Jul 26 21:33:25 2010
> fatal:systemfunc: cannot create child process:[errno=11]
>
> fatal:Execute: Error occurred at or near line 13 in file test_ncl521.ncl
>
>
> ************************************************************************************
>
> The error still exists after I updated the cygwin. Indeed, this seldom
> happened in any other old versions that I have ever used (from NCL 5.0.0).
>
> How can I solve the problem? Thanks!
>
>
> Best Regards,
> Hoffman
> _______________________________________________
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>
>
>
Received on Mon Jul 26 18:52:25 2010
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