I wanted to provide a simple spring boot API, where I have an svg file as a String. Whenever my get api (/downloadsvg) is called I should be able to download the svg file.
I have tried as below,
• I formed an svg string
• I tried converting svg string to inputstream
InputStream stream = new ByteArrayInputStream(AUSTRALIAN_BADGE.getBytes(StandardCharsets.UTF_8));
used produces = MediaType.APPLICATION_OCTET_STREAM_VALUE
Somehow I wasn't able to download it and ended up with an error. Would be great if some pointers were given.
My get API call looks like this (don't mind about the code standard, wanted to improve it once I finish the logic)
#GetMapping(value = "/downloadsvg",produces = MediaType.APPLICATION_OCTET_STREAM_VALUE)
public ResponseEntity<InputStream> downloadSvgImage() {
final String AUSTRALIAN_BADGE= "<svg x=\"0\" y=\"0\" width=\"230\" height=\"84\" overflow=\"hidden\" preserveAspectRatio=\"xMidYMid\" xml:space=\"default\" viewbox=\"0 0 230 84\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" xmlns:xml=\"http://www.w3.org/XML/1998/namespace\" version=\"1.1\">\n" +
" <rect x=\"1\" y=\"1\" width=\"228px\" height=\"82px\" rx=\"5\" ry=\"5\" stroke=\"#125430\" stroke-width=\"2\" xml:space=\"default\" style=\"fill:#FFFFFF;\" />\n" +
" <text id=\"FirstLineBadge\" xml:space=\"default\" x=\"66px\" y=\"18.18182px\" style=\"fill:Color [A=255, R=58, G=71, B=78];\" font-family=\"Fresh Sans Md\" font-size=\"14\">Made in Australia from</text>\n" +
" <text id=\"SecondLineBadge\" xml:space=\"default\" x=\"66px\" y=\"36.36364px\" style=\"fill:Color [A=255, R=58, G=71, B=78];\" font-family=\"Fresh Sans Md\" font-size=\"14\">at least 98% Australian</text>\n" +
" <text id=\"ThirdLineBadge\" xml:space=\"default\" x=\"66px\" y=\"54.54546px\" style=\"fill:Color [A=255, R=58, G=71, B=78];\" font-family=\"Fresh Sans Md\" font-size=\"14\">ingredients</text>\n" +
" <svg id=\"kangaroo\" xml:space=\"default\" width=\"48\" height=\"42\" viewbox=\"0 0 48 42\" x=\"10\" y=\"10\">\n" +
" <path d=\"M47.7 39.1 L25.6 1 C25.3 0.4 24.6 0 23.9 0 C23.2 0 22.6 0.4 22.2 1 L0.1999989 39.2 C0.1 39.5 0 39.8 0 40.1 C0 41.1 0.9 42 1.9 42 L46.2 42 C47.2 42 48.1 41.1 48.1 40.1 C48.1 39.8 48 39.4 47.7 39.1 L47.7 39.1 z\" xml:space=\"default\" class=\"logo\" style=\"fill:#F7A30A;\" />\n" +
" <path d=\"M47.7 39.1 L25.6 1 C25.3 0.4 24.6 0 23.9 0 C23.2 0 22.6 0.4 22.2 1 L6.7 28 C11.6 28.3 14 26 16.3 23.9 C18.3 22 20.5 20 24 20 C28.6 20 30.9 24.2 31 24.4 C31.3 25.1 31 25.8 30.4 26.1 C29.8 26.4 29 26.1 28.7 25.5 C28.6 25.3 26.8 22.5 24 22.5 C21.5 22.5 20 23.9 18.1 25.7 C14.8 28.9 10.2 30.4 5.700001 29.7 L0.3000007 39.1 C0.1 39.5 0 39.8 0 40.1 C0 41.1 0.9 42 1.9 42 L24.2 42 L21.3 37.8 C20.6 36.7 20.6 35.2 21.4 34.1 L24.7 28.9 C24.9 28.6 25.2 28.4 25.5 28.3 C25.8 28.2 26.2 28.3 26.5 28.5 C27.1 28.9 27.3 29.7 26.9 30.3 L23.6 35.6 C23.4 36 23.3 36.1 23.5 36.5 C24.1 37.5 27.1 41.9 27.2 42 L46.2 42 C47.2 42 48.1 41.1 48.1 40.1 C48.1 39.8 48 39.4 47.7 39.1 L47.7 39.1 z M38.8 28.6 C38.5 29 38 29.1 37.6 28.8 C37 28.5 36.3 28.3 35.6 28.3 C34.4 28.3 33.2 28.8 32.3 29.7 L27.8 35.3 C27.6 35.5 27.4 35.6 27.1 35.6 C26.9 35.6 26.6 35.5 26.5 35.3 C26.4 35.1 26.3 34.9 26.3 34.7 C26.3 34.5 26.4 34.4 26.4 34.2 L29.4 29.2 C30.5 27.2 32.5 25.9 34.8 25.8 L34 22.8 C33.9 22.4 34 22 34.3 21.8 C34.7 21.5 35.2 21.6 35.4 22 C35.4 22 35.4 22 35.4 22.1 L38.9 27.5 C39 27.9 39 28.3 38.8 28.6 z\" xml:space=\"default\" class=\"logo\" style=\"fill:#125430;\" />\n" +
" <path d=\"M35.4 22.2 C35.2 21.8 34.7 21.7 34.3 21.9 C34.3 21.9 34.3 21.9 34.2 21.9 C33.90001 22.1 33.8 22.5 33.90001 22.9 L34.7 25.9 C32.40001 26 30.3 27.3 29.3 29.3 L26.3 34.3 C26.2 34.5 26.2 34.6 26.2 34.8 C26.2 35 26.3 35.2 26.40001 35.4 C26.60001 35.6 26.8 35.7 27.00001 35.7 C27.3 35.7 27.50001 35.6 27.70001 35.4 L32.2 29.8 C33 28.9 34.2 28.3 35.5 28.4 C36.2 28.4 36.90001 28.6 37.5 28.9 C37.90001 29.1 38.40001 29 38.7 28.7 C39 28.4 39 27.9 38.8 27.6 L35.4 22.2 z\" xml:space=\"default\" class=\"logo\" style=\"fill:#F7A30A;\" />\n" +
" <path d=\"M6.6 28 L5.6 29.8 L5.6 29.8 L6.6 28 L6.6 28 z\" xml:space=\"default\" class=\"logo\" style=\"fill:#F7A30A;\" />\n" +
" <path d=\"M18 25.8 C19.9 24 21.4 22.6 23.9 22.6 C26.7 22.6 28.4 25.4 28.6 25.6 C28.9 26.2 29.7 26.5 30.4 26.1 C31 25.8 31.2 25 31 24.4 C30.9 24.2 28.6 20 24 20 C20.5 20 18.4 22 16.3 23.9 C14.1 26.1 11.7 28.3 6.699999 28 L5.699999 29.8 C10.2 30.5 14.7 29 18 25.8 z\" xml:space=\"default\" class=\"logo\" style=\"fill:#F7A30A;\" />\n" +
" <polygon xml:space=\"default\" class=\"logo\" points=\"24.2,42 27.1,42 27.1,42 24.2,42 \" style=\"fill:#F7A30A;\" />\n" +
" <path d=\"M23.5 35.6 L26.8 30.4 C27.2 29.8 27 29 26.4 28.6 C26.1 28.4 25.7 28.3 25.4 28.4 C25.1 28.5 24.8 28.7 24.6 29 L21.4 34.2 C20.6 35.3 20.6 36.7 21.3 37.9 L24.3 42.1 L27.2 42.1 C27.1 42 24.2 37.6 23.5 36.6 C23.2 36.1 23.3 36 23.5 35.6 z\" xml:space=\"default\" class=\"logo\" style=\"fill:#F7A30A;\" />\n" +
" </svg>\n" +
"</svg>";
HttpHeaders header = new HttpHeaders();
header.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=img.svg");
header.add("Cache-Control", "no-cache, no-store, must-revalidate");
header.add("Pragma", "no-cache");
header.add("Expires", "0");
InputStream stream = new ByteArrayInputStream(AUSTRALIAN_BADGE.getBytes(StandardCharsets.UTF_8));
return ResponseEntity.ok()
.headers(header)
.contentLength(AUSTRALIAN_BADGE.length())
.contentType(MediaType.APPLICATION_OCTET_STREAM)
.body(stream);
}
Just return the byte[] array with a proper header:
#GetMapping(value = "/downloadsvg")
public ResponseEntity<byte[]> downloadSvgImage() {
final String AUSTRALIAN_BADGE= "<svg x=\"0\" y=\"0
...
...</svg>";
HttpHeaders header = new HttpHeaders();
header.add("Content-Type","image/svg+xml");
return ResponseEntity.ok()
.headers(header)
.body(AUSTRALIAN_BADGE.getBytes());
The image I get when I try this code is:
[1]: https://i.stack.imgur.com/B5w0l.png
Related
This question already has answers here:
SVG data image not working as a background-image in a pseudo element
(4 answers)
Closed last year.
SVG alone works, but not as inline with src attribute to <img> tag.
<img src='data:image/svg+xml;charset=utf-8,<svg width="19" height="19" viewBox="0 0 19 19" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M0 9.14453C0 9.60156 0.175781 10.0234 0.492188 10.3398L7.91016 17.7578C8.57812 18.4258 9.66797 18.4258 10.3008 17.7578L17.4727 10.5859C18.1406 9.95312 18.1406 8.86328 17.4727 8.19531L10.0547 0.777344C9.73828 0.460938 9.31641 0.25 8.85938 0.25H1.6875C0.738281 0.25 0 1.02344 0 1.9375V9.14453ZM3.9375 2.5C4.85156 2.5 5.625 3.27344 5.625 4.1875C5.625 5.13672 4.85156 5.875 3.9375 5.875C2.98828 5.875 2.25 5.13672 2.25 4.1875C2.25 3.27344 2.98828 2.5 3.9375 2.5Z" fill="#D40026"/></svg>'/>
You have to escape all characters that can be used in a URI
In modern browsers you only need to escape the # character in SVG
That means #D40026 needs to become %23D40026
See: https://yoksel.github.io/url-encoder/
<svg width="19" height="19" viewBox="0 0 190 190" fill="none" xmlns="http://www.w3.org/2000/svg">
<path d="M0 91C0 96 2 100 5 103L79 178C86 184 97 184 103 178L175 106C181 100 181 89 175 82L101 8C97 5 93 3 89 3H17C7 3 0 10 0 19V91ZM39 25C49 25 56 33 56 42 56 51 49 59 39 59 30 59 23 51 23 42 23 33 30 25 39 25Z"
fill="#D40026"/>
</svg>
<img src='data:image/svg+xml;charset=utf-8,<svg width="19" height="19" viewBox="0 0 190 190" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M0 91C0 96 2 100 5 103L79 178C86 184 97 184 103 178L175 106C181 100 181 89 175 82L101 8C97 5 93 3 89 3H17C7 3 0 10 0 19V91ZM39 25C49 25 56 33 56 42 56 51 49 59 39 59 30 59 23 51 23 42 23 33 30 25 39 25Z"
fill="firebrick"/></svg>'/>
<img src='data:image/svg+xml;charset=utf-8,<svg width="19" height="19" viewBox="0 0 190 190" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M0 91C0 96 2 100 5 103L79 178C86 184 97 184 103 178L175 106C181 100 181 89 175 82L101 8C97 5 93 3 89 3H17C7 3 0 10 0 19V91ZM39 25C49 25 56 33 56 42 56 51 49 59 39 59 30 59 23 51 23 42 23 33 30 25 39 25Z"
fill="%23D40026"/></svg>'/>
*edit
I have radix sort procedure, and i got this code on another site referension. But this radix sort only for ascending not for descending.
Can you guys help me how to make it to descending
Program SortStuff;
Uses Crt, Dos;
Type
AType = Array [1..400] of Integer;
Ptr = ^Node;
Node = Record
Info : Integer;
Link : Ptr;
end;
LType = Array [0..9] of Ptr;
Var
Ran : AType;
MaxData : Integer;
and this section of the procedure of refill
Procedure Refill (Var A : AType; Var L : LType);
Var
I, J : Integer;
P : Ptr;
begin
J := 1;
For I := 0 to 9 do
begin
P := L [I];
While P <> Nil do
begin
A [J] := P^.Info;
P := P^.Link;
J := J + 1;
end;
end;
For I := 0 to 9 do
L [I] := Nil;
end;
This is the radix sort code
Procedure RadixSort (Var A : AType; MaxData : Integer);
Var
L : LType;
I,
divisor,
ListNo,
Number : Integer;
begin
For I := 0 to 9 do L [I] := Nil;
divisor := 1;
While divisor <= 1000 do
begin
I := 1;
While I <= MaxData do
begin
Number := A [I];
ListNo := Number div divisor MOD 10;
Insert (L, Number, ListNo);
I := I + 1;
end;
Refill (A, L);
divisor := 10 * divisor;
end;
end;
and this the main code
begin
ReadData (Ran, MaxData);
Writeln ('Unsorted : ');
WriteArray (Ran, MaxData);
RadixSort (Ran, MaxData);
Writeln ('Sorted : ');
WriteArray (Ran, MaxData);
readln;
end.
this is the result of the compiler when ascending
Unsorted :
7131 5110 638 7836 3809 1278 9577 7590 8244 5902 7610 4787 6809 1510 3564 3358 6411 995 4966 9800 5807 678 9174 9385 4146 1824 4869 9383 3638 2304 8130 1178 5102 2192 1739 1643 2965 7245 7050 2416 3778 5515 4395 3418 4869 9814 6073 5014 8501 210 3966 4891 8992 2882 5512 3775 799 9985 8189 4664 4360 241 7681 6235 7152 8032 8874 19 9253 1943 2049 8301 1848 9175 8698 6578 8111 4442 5157 8832 9848 6448 3881 2753 4100 1130 9516 4539 5515 9756 1047 3313 2937 575 8634 9439 8508 8 2596 3814 4996 5129 9810 1220 8242 7672 7342 1320 3195 7590 4342 5697 7866 2326 6726 3441 8276 6531 2211 6285 4492 9310 2155 2349 1396 9157 772 3984 1955 9417 7644 4814 90 7922 180 6536 7018 7411 263 3775 2014 2339 4064 6623 4173 4031 5979 4930 7654 4039 1531 4916 7357 8802 6935 6108 1580 3999 6225 2641 6330 6907 2584 3437 7753 8680 2192 4461 748 983 364 1695 197 8174 3128 104 4724 546 3826 7640 8669 4481 4763 599 2983 4433 92 8317 8102 413 91 1355 7456 4577 8442 26 8319 5010 1140 1232 1688 4080 4445 3548 5713 8391 4295 296 294 1477 8487 5823 9493 4528 434 2589 9499 6092 9784 6773 1907 9382 2203 3774 8438 8672 3290 3590 4540 2912 7308 9782 5615 8352 9456 5867 5657 218 6838 6294 3295 4741 5949 9369 8949 9672 5853 7054 855 3755 3113 4712 9043 3412 4546 2567 9934 2034 2007 1845 6466 2815 3012 498 5736 2487 881 6250 780 6817 7309 8503 9697 6149 7132 6936 5692 2757 6150 2705 1401 9272 4190 6116 8096 2386 2027 8913 7734 7318 4423 8439 7087 7995 8429 7139 818 1495 3284 2418 3295 5121 2989 5741 433 1905 5468 9828 8946 3179 7615 894 9766 2971 847 6450 4686 9597 4851 2080 7062 1956 2386 7476 1703 2738 3864 6491 7545 3046 1432 1050 3534 6054 5005 4862 9126 2877 1259 8613 1209 4982 236 9877 1697 4142 7484 2562 1554 8105 6483 3440 1462 8463 2006 7193 8316 281 6544 645 7043 2857 70 5525 6953 8924 7032 7593 4514 2192 8088 59 2861 4685 897 7319 3300 410 773 2147 9992 2985 8834 302 437 4323 6566 8357 9802 8257 7543 3607 1131 564 9474 9203 9127 575 708 7767
Sorted :
8 19 26 59 70 90 91 92 104 180 197 210 218 236 241 263 281 294 296 302 364 410 413 433 434 437 498 546 564 575 575 599 638 645 678 708 748 772 773 780 799 818 847 855 881 894 897 983 995 1047 1050 1130 1131 1140 1178 1209 1220 1232 1259 1278 1320 1355 1396 1401 1432 1462 1477 1495 1510 1531 1554 1580 1643 1688 1695 1697 1703 1739 1824 1845 1848 1905 1907 1943 1955 1956 2006 2007 2014 2027 2034 2049 2080 2147 2155 2192 2192 2192 2203 2211 2304 2326 2339 2349 2386 2386 2416 2418 2487 2562 2567 2584 2589 2596 2641 2705 2738 2753 2757 2815 2857 2861 2877 2882 2912 2937 2965 2971 2983 2985 2989 3012 3046 3113 3128 3179 3195 3284 3290 3295 3295 3300 3313 3358 3412 3418 3437 3440 3441 3534 3548 3564 3590 3607 3638 3755 3774 3775 3775 3778 3809 3814 3826 3864 3881 3966 3984 3999 4031 4039 4064 4080 4100 4142 4146 4173 4190 4295 4323 4342 4360 4395 4423 4433 4442 4445 4461 4481 4492 4514 4528 4539 4540 4546 4577 4664 4685 4686 4712 4724 4741 4763 4787 4814 4851 4862 4869 4869 4891 4916 4930 4966 4982 4996 5005 5010 5014 5102 5110 5121 5129 5157 5468 5512 5515 5515 5525 5615 5657 5692 5697 5713 5736 5741 5807 5823 5853 5867 5902 5949 5979 6054 6073 6092 6108 6116 6149 6150 6225 6235 6250 6285 6294 6330 6411 6448 6450 6466 6483 6491 6531 6536 6544 6566 6578 6623 6726 6773 6809 6817 6838 6907 6935 6936 6953 7018 7032 7043 7050 7054 7062 7087 7131 7132 7139 7152 7193 7245 7308 7309 7318 7319 7342 7357 7411 7456 7476 7484 7543 7545 7590 7590 7593 7610 7615 7640 7644 7654 7672 7681 7734 7753 7767 7836 7866 7922 7995 8032 8088 8096 8102 8105 8111 8130 8174 8189 8242 8244 8257 8276 8301 8316 8317 8319 8352 8357 8391 8429 8438 8439 8442 8463 8487 8501 8503 8508 8613 8634 8669 8672 8680 8698 8802 8832 8834 8874 8913 8924 8946 8949 8992 9043 9126 9127 9157 9174 9175 9203 9253 9272 9310 9369 9382 9383 9385 9417 9439 9456 9474 9493 9499 9516 9577 9597 9672 9697 9756 9766 9782 9784 9800 9802 9810 9814 9828 9848 9877 9934 9985 9992
then i tried to modify ListNo := Number div divisor MOD 10; and reverse it into ListNo := divisor div Number MOD 10; and the final result become to
Unsorted :
7131 5110 638 7836 3809 1278 9577 7590 8244 5902 7610 4787 6809 1510 3564 3358 6411 995 4966 9800 5807 678 9174 9385 4146 1824 4869 9383 3638 2304 8130 1178 5102 2192 1739 1643 2965 7245 7050 2416 3778 5515 4395 3418 4869 9814 6073 5014 8501 210 3966 4891 8992 2882 5512 3775 799 9985 8189 4664 4360 241 7681 6235 7152 8032 8874 19 9253 1943 2049 8301 1848 9175 8698 6578 8111 4442 5157 8832 9848 6448 3881 2753 4100 1130 9516 4539 5515 9756 1047 3313 2937 575 8634 9439 8508 8 2596 3814 4996 5129 9810 1220 8242 7672 7342 1320 3195 7590 4342 5697 7866 2326 6726 3441 8276 6531 2211 6285 4492 9310 2155 2349 1396 9157 772 3984 1955 9417 7644 4814 90 7922 180 6536 7018 7411 263 3775 2014 2339 4064 6623 4173 4031 5979 4930 7654 4039 1531 4916 7357 8802 6935 6108 1580 3999 6225 2641 6330 6907 2584 3437 7753 8680 2192 4461 748 983 364 1695 197 8174 3128 104 4724 546 3826 7640 8669 4481 4763 599 2983 4433 92 8317 8102 413 91 1355 7456 4577 8442 26 8319 5010 1140 1232 1688 4080 4445 3548 5713 8391 4295 296 294 1477 8487 5823 9493 4528 434 2589 9499 6092 9784 6773 1907 9382 2203 3774 8438 8672 3290 3590 4540 2912 7308 9782 5615 8352 9456 5867 5657 218 6838 6294 3295 4741 5949 9369 8949 9672 5853 7054 855 3755 3113 4712 9043 3412 4546 2567 9934 2034 2007 1845 6466 2815 3012 498 5736 2487 881 6250 780 6817 7309 8503 9697 6149 7132 6936 5692 2757 6150 2705 1401 9272 4190 6116 8096 2386 2027 8913 7734 7318 4423 8439 7087 7995 8429 7139 818 1495 3284 2418 3295 5121 2989 5741 433 1905 5468 9828 8946 3179 7615 894 9766 2971 847 6450 4686 9597 4851 2080 7062 1956 2386 7476 1703 2738 3864 6491 7545 3046 1432 1050 3534 6054 5005 4862 9126 2877 1259 8613 1209 4982 236 9877 1697 4142 7484 2562 1554 8105 6483 3440 1462 8463 2006 7193 8316 281 6544 645 7043 2857 70 5525 6953 8924 7032 7593 4514 2192 8088 59 2861 4685 897 7319 3300 410 773 2147 9992 2985 8834 302 437 4323 6566 8357 9802 8257 7543 3607 1131 564 9474 9203 9127 575 708 7767
Sorted :
7131 5110 7836 3809 1278 9577 7590 8244 5902 7610 4787 6809 1510 3564 3358 6411 4966 9800 5807 9174 9385 4146 1824 4869 9383 3638 2304 8130 1178 5102 2192 1739 1643 2965 7245 7050 2416 3778 5515 4395 3418 4869 9814 6073 5014 8501 3966 4891 8992 2882 5512 3775 9985 8189 4664 4360 7681 6235 7152 8032 8874 9253 1943 2049 8301 1848 9175 8698 6578 8111 4442 5157 8832 9848 6448 3881 2753 4100 1130 9516 4539 5515 9756 1047 3313 2937 8634 9439 8508 2596 3814 4996 5129 9810 1220 8242 7672 7342 1320 3195 7590 4342 5697 7866 2326 6726 3441 8276 6531 2211 6285 4492 9310 2155 2349 1396 9157 3984 1955 9417 7644 4814 7922 6536 7018 7411 3775 2014 2339 4064 6623 4173 4031 5979 4930 7654 4039 1531 4916 7357 8802 6935 6108 1580 3999 6225 2641 6330 6907 2584 3437 7753 8680 2192 4461 1695 8174 3128 4724 3826 7640 8669 4481 4763 2983 4433 8317 8102 1355 7456 4577 8442 8319 5010 1140 1232 1688 4080 4445 3548 5713 8391 4295 1477 8487 5823 9493 4528 2589 9499 6092 9784 6773 1907 9382 2203 3774 8438 8672 3290 3590 4540 2912 7308 9782 5615 8352 9456 5867 5657 6838 6294 3295 4741 5949 9369 8949 9672 5853 7054 3755 3113 4712 9043 3412 4546 2567 9934 2034 2007 1845 6466 2815 3012 5736 2487 6250 6817 7309 8503 9697 6149 7132 6936 5692 2757 6150 2705 1401 9272 4190 6116 8096 2386 2027 8913 7734 7318 4423 8439 7087 7995 8429 7139 1495 3284 2418 3295 5121 2989 5741 1905 5468 9828 8946 3179 7615 9766 2971 6450 4686 9597 4851 2080 7062 1956 2386 7476 1703 2738 3864 6491 7545 3046 1432 1050 3534 6054 5005 4862 9126 2877 1259 8613 1209 4982 9877 1697 4142 7484 2562 1554 8105 6483 3440 1462 8463 2006 7193 8316 6544 7043 2857 5525 6953 8924 7032 7593 4514 2192 8088 2861 4685 7319 3300 2147 9992 2985 8834 4323 6566 8357 9802 8257 7543 3607 1131 9474 9203 9127 7767 92 91 638 995 678 799 575 772 748 983 546 599 855 881 780 818 894 847 645 897 773 564 575 708 90 364 413 434 498 433 410 437 19 263 296 294 281 302 210 241 218 236 70 180 197 8 59 26 104
Problem
I'm running an executable cp2k installed on HPC cluster using mpich-3.2. The output from the executable is printed in an out file. The problem is, that there is no output in the out file after some steps are printed, but when I see the status of my job on the cluster, it turns out that it is still running. Basically, the problem is that my job is still running, but the output is not getting printed.
Script
I'm using the following job script:
#!/bin/bash
#PBS -N test
#PBS -o test.log
#PBS -j oe
#PBS -l nodes=2:ppn=20
#PBS -q mini
#PBS -l walltime=2:00:00
cd $PBS_O_WORKDIR
echo Master process running on `hostname`
echo Directory is `pwd`
echo PBS has allocated the following nodes:
echo `cat $PBS_NBODEFILE`
NPROCS=`wc -l < $PBS_NODEFILE`
echo This job has allocated $NPROCS nodes
export I_MPI_FABRICS=shm:dapl
export I_MPI_PROVIDER=psm2
export I_MPI_FALLBACK=0
export KMP_AFFINITY=verbose,scatter
export OMP_NUM_THREADS=1
export I_MPI_IFACE=ib0
echo Starting executation at `date`
EXEC="/home/arshil/software/cp2k-5.1.0/exe/local/cp2k.popt"
cp $EXEC ./cp2k
mpiexec -np $NPROCS --machinefile $PBS_NODEFILE ./cp2k -i test.inp >& out
rm cp2k
echo Finished at `date`
Error
The ouput in the out file:
SCF WAVEFUNCTION OPTIMIZATION
----------------------------------- OT ---------------------------------------
Minimizer : DIIS : direct inversion
in the iterative subspace
using 7 DIIS vectors
safer DIIS on
Preconditioner : FULL_SINGLE_INVERSE : inversion of
H + eS - 2*(Sc)(c^T*H*c+const)(Sc)^T
Precond_solver : DEFAULT
stepsize : 0.08000000 energy_gap : 0.08000000
eps_taylor : 0.10000E-15 max_taylor : 4
----------------------------------- OT ---------------------------------------
Step Update method Time Convergence Total energy Change
------------------------------------------------------------------------------
1 OT DIIS 0.80E-01 21.3 0.00002878 -8797.2068024142 -8.80E+03
2 OT DIIS 0.80E-01 10.9 0.00007114 -8797.2061897209 6.13E-04
3 OT DIIS 0.80E-01 10.8 0.00001688 -8797.2073257531 -1.14E-03
As it can be seen, there is no printing after step 3 in the output file, but the job is still running in the background. Even after the walltime is over, the output file remains the same as above. Where is the output going?
The executable cp2k is used to perform quantum chemical calculations and was installed on the cluster along with mpich-3.2. All CP2K needs is an input file with extension .inp. For my case, test.inp is the input file.
&FORCE_EVAL
METHOD Quickstep
&DFT
BASIS_SET_FILE_NAME GTH_BASIS_SETS
POTENTIAL_FILE_NAME GTH_POTENTIALS
&MGRID
NGRIDS 4
CUTOFF 380
REL_CUTOFF 60
&END MGRID
&QS
METHOD GPW
MAP_CONSISTENT
EXTRAPOLATION ASPC
EXTRAPOLATION_ORDER 3
&END QS
&SCF
MAX_SCF 1000
EPS_SCF 1.0E-5
SCF_GUESS ATOMIC
&OT
PRECONDITIONER FULL_SINGLE_INVERSE
MINIMIZER DIIS
N_DIIS 7
&END OT
&PRINT
&RESTART OFF
&END RESTART
&END PRINT
&END SCF
&XC
&XC_FUNCTIONAL PBE
&END XC_FUNCTIONAL
&vdW_POTENTIAL
DISPERSION_FUNCTIONAL PAIR_POTENTIAL
&PAIR_POTENTIAL
PARAMETER_FILE_NAME dftd3.dat
TYPE DFTD3
REFERENCE_FUNCTIONAL PBE
R_CUTOFF [angstrom] 12.3
&END PAIR_POTENTIAL
&END vdW_POTENTIAL
&END XC
&END DFT
&SUBSYS
&CELL
ABC 24.6904 24.6904 24.6904
PERIODIC XYZ
&END CELL
&KIND C
BASIS_SET TZV2P-GTH
POTENTIAL GTH-PBE-q4
&END KIND
&KIND P
BASIS_SET TZV2P-GTH
POTENTIAL GTH-PBE-q5
&END KIND
&KIND H
BASIS_SET TZV2P-GTH
POTENTIAL GTH-PBE-q1
&END KIND
&KIND O
BASIS_SET TZV2P-GTH
POTENTIAL GTH-PBE-q6
&END KIND
&KIND N
BASIS_SET TZV2P-GTH
POTENTIAL GTH-PBE-q5
&END KIND
&KIND Mg
BASIS_SET TZV2P-GTH
POTENTIAL GTH-PBE-q10
&END KIND
&COLVAR
&COORDINATION
ATOMS_FROM 41
ATOMS_TO 38
R_0 [bohr] 4.5
NN 6
ND 12
&END COORDINATION
&END COLVAR
&COLVAR
&COORDINATION
ATOMS_FROM 41
ATOMS_TO 42 44 47 50 53 56 59 62 65 68 71 74 77 80 83 86 89 92 95 98 101 104 107 110 113 116 119 122 125 128 131 134 137 140 143 146 149 152 155 158 161 164 167 170 173 176 179 182 185 188 191 194 197 200 203 206 209 212 215 218 221 224 227 230 233 236 239 242 245 248 251 254 257 260 263 266 269 272 275 278 281 284 287 290 293 296 299 302 305 308 311 314 317 320 323 326 329 332 335 338 341 344 347 350 353 356 359 362 365 368 371 374 377 380 383 386 389 392 395 398 401 404 407 410 413 416 419 422 425 428 431 434 437 440 443 446 449 452 455 458 461 464 467 470 473 476 479 482 485 488 491 494 497 500 503 506 509 512 515 518 521 524 527 530 533 536 539 542 545 548 551 554 557 560 563 566 569 572 575 578 581 584 587 590 593 596 599 602 605 608 611 614 617 620 623 626 629 632 635 638 641 644 647 650 653 656 659 662 665 668 671 674 677 680 683 686 689 692 695 698 701 704 707 710 713 716 719 722 725 728 731 734 737 740 743 746 749 752 755 758 761 764 767 770 773 776 779 782 785 788 791 794 797 800 803 806 809 812 815 818 821 824 827 830 833 836 839 842 845 848 851 854 857 860 863 866 869 872 875 878 881 884 887 890 893 896 899 902 905 908 911 914 917 920 923 926 929 932 935 938 941 944 947 950 953 956 959 962 965 968 971 974 977 980 983 986 989 992 995 998 1001 1004 1007 1010 1013 1016 1019 1022 1025 1028 1031 1034 1037 1040 1043 1046 1049 1052 1055 1058 1061 1064 1067 1070 1073 1076 1079 1082 1085 1088 1091 1094 1097 1100 1103 1106 1109 1112 1115 1118 1121 1124 1127 1130 1133 1136 1139 1142 1145 1148 1151 1154 1157 1160 1163 1166 1169 1172 1175 1178 1181 1184 1187 1190 1193 1196 1199 1202 1205 1208 1211 1214 1217 1220 1223 1226 1229 1232 1235 1238 1241 1244 1247 1250 1253 1256 1259 1262 1265 1268 1271 1274 1277 1280 1283 1286 1289 1292 1295 1298 1301 1304 1307 1310 1313 1316 1319 1322 1325 1328 1331 1334 1337 1340 1343 1346 1349 1352 1355 1358 1361 1364 1367 1370 1373 1376 1379 1382 1385 1388 1391 1394 1397 1400 1403 1406 1409 1412 1415 1418 1421 1424 1427 1430 1433 1436 1439 1442 1445 1448 1451 1454 1457
ATOMS_TO 1460 1463 1466 1469 1472 1475 1478 1481 1484 1487 1490 1493 1496 1499 1502 1505
R_0 [bohr] 4.5
NN 6
ND 12
&END COORDINATION
&END COLVAR
&END SUBSYS
&END FORCE_EVAL
&GLOBAL
PROJECT test
RUN_TYPE MD
PRINT_LEVEL LOW
&END GLOBAL
&MOTION
&MD
ENSEMBLE NVT
STEPS 100000
TIMESTEP 0.5
TEMPERATURE 310
TEMP_TOL 100
&THERMOSTAT
&NOSE
LENGTH 3
YOSHIDA 3
TIMECON 100.0
MTS 2
&END NOSE
&END
&PRINT
&ENERGY
&EACH
MD 10
&END
&END
&PROGRAM_RUN_INFO
&EACH
MD 100
&END
&END
FORCE_LAST
&END PRINT
&END MD
&FREE_ENERGY
&METADYN
DO_HILLS
LAGRANGE .TRUE.
NT_HILLS 40
WW [kcalmol] 1
TEMPERATURE 310
TEMP_TOL 10
&METAVAR
SCALE 0.05
COLVAR 1
MASS 50
LAMBDA 2
&WALL
POSITION 0.0
TYPE QUARTIC
&QUARTIC
DIRECTION WALL_MINUS
K 10.0
&END
&END
&END METAVAR
&METAVAR
SCALE 0.05
COLVAR 2
MASS 50
LAMBDA 2
&WALL
POSITION 0.0
TYPE QUARTIC
&QUARTIC
DIRECTION WALL_MINUS
K 10.0
&END
&END
&END METAVAR
&PRINT
&COLVAR
COMMON_ITERATION_LEVELS 3
&EACH
MD 1
&END
&END
&HILLS
COMMON_ITERATION_LEVELS 3
&EACH
MD 1
&END
&END
&END
&END METADYN
&END
&PRINT
&TRAJECTORY
&EACH
MD 1
&END
&END
&VELOCITIES OFF
&END
&RESTART
&EACH
MD 20
&END
ADD_LAST NUMERIC
&END
&RESTART_HISTORY
&EACH
MD 2000
&END
&END
&END
&END MOTION
&EXT_RESTART
RESTART_FILE_NAME NVT-1.restart
RESTART_COUNTERS .FALSE.
&END
The problem in my opinion is not with the input file. It has got to do something with mpich-3.2. I would really appreciate some help.
This may be something similar going on / solutions that can be used here: Python "print" not working when embedded into MPI program It is not perfect as you are not using python however it may help.
At a basic level MPI launches many processes - but only the command that launches it has access to stdio etc. The redirect at the end of the line starting with mpiexec sends the stdout of mpiexec to a file. The output from your script is buffered by mpiexec until the processes end (either they complete or they are stopped).
Where the output is going is a good question and may require changes in test.np or some other way of shutting down (you mention you were out of wall time). I'm looking to solve the same problem - and will update this (if) I find an answer.
Also the output from different processes started by mpi can arrive in random order. I do not care about this but if you do you may need to pass the messages back to some common thread which sorts their order.
I have a sort -g k9 command on a file that gives me this in the bash standard output:
55.19 645 156 15 9 520 58 702 0.0 661
55.50 636 159 16 9 520 58 693 0.0 654
55.19 645 156 15 9 520 58 702 0.0 658
56.52 644 147 16 9 520 59 701 0.0 669
55.97 645 151 15 9 520 65 709 0.0 672
55.97 645 151 15 9 520 65 709 4e-124 674
28.32 671 301 32 1 507 48 702 3e-49 183
28.32 671 301 32 1 507 47 701 3e-49 183
31.40 516 247 24 86 507 196 698 1e-46 176
31.41 519 243 25 86 507 196 698 5e-46 175
27.72 588 290 26 19 481 98 675 2e-39 154
30.56 337 170 17 101 413 302 598 5e-20 96.3
30.56 337 170 17 101 413 302 598 8e-20 95.5
I would like to cut my data based on the 9th column. The idea would be to compare the value of the 9th column on line i, divide it by the value of the 9th column on line i+1, and if the ratio is 0 OR 0/0 OR > 1e-50, line i and i+1 are kept. As soon as one of these conditions is not filled, stop reading. The desired output would be:
55.19 645 156 15 9 520 58 702 0.0 661
55.50 636 159 16 9 520 58 693 0.0 654
55.19 645 156 15 9 520 58 702 0.0 658
56.52 644 147 16 9 520 59 701 0.0 669
55.97 645 151 15 9 520 65 709 0.0 672
55.97 645 151 15 9 520 65 709 4e-124 674
I can obtain this output with head -n 6 but this is obviously not based on the condition on values in the 9th column. Please note that the values are in 'scientific' format.
I know how to do this in Python (write the standard output to a file, calculate ratios, etc.) but for commodity reasons I'd prefer a shell-based solution (with awk or sort for instance) although I don't know if that's possible. Thanks for your help!
Just exit the script when the condition is not accomplished; otherwise, print the previous line and store the 9th field to compare on the next loop:
$ awk '($9 && prev/$9>1e-50) {exit} {print stored; prev=$9; stored=$0}' file
55.19 645 156 15 9 520 58 702 0.0 661
55.50 636 159 16 9 520 58 693 0.0 654
55.19 645 156 15 9 520 58 702 0.0 658
56.52 644 147 16 9 520 59 701 0.0 669
55.97 645 151 15 9 520 65 709 0.0 672
55.97 645 151 15 9 520 65 709 4e-124 674
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I wrote a simple genetic algorithm that can solve traveling salesman problem with 5 cities. I want to see how it does on a problem with more cities, something like 10, 25, 50, 100, but I can't find a sample date for the problem to try it on. Basically, I am looking for 2D lists or matrices with distances between cities. It would be nice if there is a solution. Where should I look?
Thank You in Advance
A well-known benchmark library for the TSP with instances ranging from as few as 14 to close to 100,000 cities is the TSPLIB. The instances have been solved to optimality, for some instances the optimal solution is also available.
Many of the instances have a real-world background such as travel been cities in Germany, Switzerland, the USA, or in the whole world. Some of the instances represent drilling problems for computer board layout There's also an instance that represents the voyage of Ulysses.
The sources I've found online are quite huge. I might be doing something wrong, but 10 places (cities) take ~0.6s and 11 places take ~7s. The smallest known-solution dataset I could find was 15 places (and considered "small", the "classical" one being 48 places) but perhaps those are for optimized (non-brute force) algorithms. In the end I made my own table with real-world cities:
m
a
a h
s h s u
t a e i g l
r a e t e s
i c r t l e b b a e
c h l a e c o e n o p
h e e r e h n r n h e
t n n d n t n g e e n
maastricht 0 29 20 21 16 31 100 12 4 31 18
aachen 29 0 15 29 28 40 72 21 29 41 12
heerlen 20 15 0 15 14 25 81 9 23 27 13
sittard 21 29 15 0 4 12 92 12 25 13 25
geleen 16 28 14 4 0 16 94 9 20 16 22
echt 31 40 25 12 16 0 95 24 36 3 37
bonn 100 72 81 92 94 95 0 90 101 99 84
hulsberg 12 21 9 12 9 24 90 0 15 25 13
kanne 4 29 23 25 20 36 101 15 0 35 18
ohe 31 41 27 13 16 3 99 25 35 0 38
epen 18 12 13 25 22 37 84 13 18 38 0
Optimal (by program): cities 0-7-4-3-9-5-2-6-1-10-8-0 = 253km
maastricht -> hulsberg -> geleen -> sittard -> ohe -> kanne -> echt
-> heerlen -> bonn -> aachen -> epen -> kanne -> maastricht
The data format readable by the program is a partial table (because it's symmetrical):
29 20 21 16 31 100 12 4 31 18
15 29 28 40 72 21 29 41 12
15 14 25 81 9 23 27 13
4 12 92 12 25 13 25
16 94 9 20 16 22
95 24 36 3 37
90 101 99 84
15 25 13
35 18
38
For me this takes ~6.7 seconds to process on a 3rd gen i7 (i7-3630QM). Program is written in C++, single-threaded and simply brute-forces the possibilities. For testing it might be more practical to remove one place, then it takes ~660ms (0.7s) which is still enough to see if code changes make much of a difference.
For next incomes, i'll paste some more "small" cases:
You can find more tests in here. but the file is ".tsp" extension and you should do a simple parse that translate to the matrix of distances.
(distance in miles)
6 cities, expected: 1248.0
9999 64 378 519 434 200
64 9999 318 455 375 164
378 318 9999 170 265 344
519 455 170 9999 223 428
434 375 265 223 9999 273
200 164 344 428 273 9999
15 cities, expected: 1194.0
-1 141 134 152 173 289 326 329 285 401 388 366 343 305 276
141 -1 152 150 153 312 354 313 249 324 300 272 247 201 176
134 152 -1 24 48 168 210 197 153 280 272 257 237 210 181
152 150 24 -1 24 163 206 182 133 257 248 233 214 187 158
173 153 48 24 -1 160 203 167 114 234 225 210 190 165 137
289 312 168 163 160 -1 43 90 124 250 264 270 264 267 249
326 354 210 206 203 43 -1 108 157 271 290 299 295 303 287
329 313 197 182 167 90 108 -1 70 164 183 195 194 210 201
285 249 153 133 114 124 157 70 -1 141 147 148 140 147 134
401 324 280 257 234 250 271 164 141 -1 36 67 88 134 150
388 300 272 248 225 264 290 183 147 36 -1 33 57 104 124
366 272 257 233 210 270 299 195 148 67 33 -1 26 73 96
343 247 237 214 190 264 295 194 140 88 57 26 -1 48 71
305 201 210 187 165 267 303 210 147 134 104 73 48 -1 30
276 176 181 158 137 249 287 201 134 150 124 96 71 30 -1
Hugeeee 29 cities, expected: 27603
imagem: western sahara
-1 74 4110 3048 2267 974 4190 3302 4758 3044 3095 3986 5093 6407 5904 8436 6963 6694 6576 8009 7399 7267 7425 9639 9230 8320 9300 8103 7799
74 -1 4070 3000 2214 901 4138 3240 4702 2971 3021 3915 5025 6338 5830 8369 6891 6620 6502 7939 7326 7193 7351 9571 9160 8249 9231 8030 7725
4110 4070 -1 1173 1973 3496 892 1816 1417 3674 3778 2997 2877 3905 5057 5442 4991 5151 5316 5596 5728 5811 5857 6675 6466 6061 6523 6165 6164
3048 3000 1173 -1 817 2350 1172 996 1797 2649 2756 2317 2721 3974 4548 5802 4884 4887 4960 5696 5537 5546 5634 7045 6741 6111 6805 6091 5977
2267 2214 1973 817 -1 1533 1924 1189 2498 2209 2312 2325 3089 4401 4558 6342 5175 5072 5075 6094 5755 5712 5828 7573 7222 6471 7289 6374 6187
974 901 3496 2350 1533 -1 3417 2411 3936 2114 2175 3014 4142 5450 4956 7491 5990 5725 5615 7040 6430 6304 6459 8685 8268 7348 8338 7131 6832
4190 4138 892 1172 1924 3417 -1 1233 652 3086 3185 2203 1987 3064 4180 4734 4117 4261 4425 4776 4844 4922 4971 5977 5719 5228 5780 5302 5281
3302 3240 1816 996 1189 2411 1233 -1 1587 1877 1979 1321 1900 3214 3556 5175 4006 3947 3992 4906 4615 4599 4700 6400 6037 5288 6105 5209 5052
4758 4702 1417 1797 2498 3936 652 1587 -1 3286 3374 2178 1576 2491 3884 4088 3601 3818 4029 4180 4356 4469 4497 5331 5084 4645 5143 4761 4787
3044 2971 3674 2649 2209 2114 3086 1877 3286 -1 107 1360 2675 3822 2865 5890 4090 3723 3560 5217 4422 4257 4428 7000 6514 5455 6587 5157 4802
3095 3021 3778 2756 2312 2175 3185 1979 3374 107 -1 1413 2725 3852 2826 5916 4088 3705 3531 5222 4402 4229 4403 7017 6525 5451 6598 5142 4776
3986 3915 2997 2317 2325 3014 2203 1321 2178 1360 1413 -1 1315 2511 2251 4584 2981 2778 2753 4031 3475 3402 3531 5734 5283 4335 5355 4143 3897
5093 5025 2877 2721 3089 4142 1987 1900 1576 2675 2725 1315 -1 1323 2331 3350 2172 2275 2458 3007 2867 2935 2988 4547 4153 3400 4222 3376 3307
6407 6338 3905 3974 4401 5450 3064 3214 2491 3822 3852 2511 1323 -1 2350 2074 1203 1671 2041 1725 1999 2213 2173 3238 2831 2164 2901 2285 2397
5904 5830 5057 4548 4558 4956 4180 3556 3884 2865 2826 2251 2331 2350 -1 3951 1740 1108 772 2880 1702 1450 1650 4779 4197 2931 4270 2470 2010
8436 8369 5442 5802 6342 7491 4734 5175 4088 5890 5916 4584 3350 2074 3951 -1 2222 2898 3325 1276 2652 3019 2838 1244 1089 1643 1130 2252 2774
6963 6891 4991 4884 5175 5990 4117 4006 3601 4090 4088 2981 2172 1203 1740 2222 -1 684 1116 1173 796 1041 974 3064 2505 1368 2578 1208 1201
6694 6620 5151 4887 5072 5725 4261 3947 3818 3723 3705 2778 2275 1671 1108 2898 684 -1 432 1776 706 664 756 3674 3090 1834 3162 1439 1120
6576 6502 5316 4960 5075 5615 4425 3992 4029 3560 3531 2753 2458 2041 772 3325 1116 432 -1 2174 930 699 885 4064 3469 2177 3540 1699 1253
8009 7939 5596 5696 6094 7040 4776 4906 4180 5217 5222 4031 3007 1725 2880 1276 1173 1776 2174 -1 1400 1770 1577 1900 1332 510 1406 1002 1499
7399 7326 5728 5537 5755 6430 4844 4615 4356 4422 4402 3475 2867 1999 1702 2652 796 706 930 1400 -1 371 199 3222 2611 1285 2679 769 440
7267 7193 5811 5546 5712 6304 4922 4599 4469 4257 4229 3402 2935 2213 1450 3019 1041 664 699 1770 371 -1 220 3583 2970 1638 3037 1071 560
7425 7351 5857 5634 5828 6459 4971 4700 4497 4428 4403 3531 2988 2173 1650 2838 974 756 885 1577 199 220 -1 3371 2756 1423 2823 852 375
9639 9571 6675 7045 7573 8685 5977 6400 5331 7000 7017 5734 4547 3238 4779 1244 3064 3674 4064 1900 3222 3583 3371 -1 620 1952 560 2580 3173
9230 9160 6466 6741 7222 8268 5719 6037 5084 6514 6525 5283 4153 2831 4197 1089 2505 3090 3469 1332 2611 2970 2756 620 -1 1334 74 1961 2554
8320 8249 6061 6111 6471 7348 5228 5288 4645 5455 5451 4335 3400 2164 2931 1643 1368 1834 2177 510 1285 1638 1423 1952 1334 -1 1401 648 1231
9300 9231 6523 6805 7289 8338 5780 6105 5143 6587 6598 5355 4222 2901 4270 1130 2578 3162 3540 1406 2679 3037 2823 560 74 1401 -1 2023 2617
8103 8030 6165 6091 6374 7131 5302 5209 4761 5157 5142 4143 3376 2285 2470 2252 1208 1439 1699 1002 769 1071 852 2580 1961 648 2023 -1 594
7799 7725 6164 5977 6187 6832 5281 5052 4787 4802 4776 3897 3307 2397 2010 2774 1201 1120 1253 1499 440 560 375 3173 2554 1231 2617 594 -1