parallel processing - Only one image in Fortran Coarrays in gfortran -


i'm using gfortran compiler , trying work on parallel programming without mpi. though, spent time on reading fortran, gfortran, parallel programming, couldn't use different processors @ same time.

my purpose create matrix multiplication working on different processor reduce time. have many ideas first of all, have use different processors. use written codes, computer have 1 image. example:

program hello_image  integer::a    write(*,*) "hello image ", this_image(), &               "out of ", num_images()," total images"      read(*,*),  end program hello_image

this simple program took pdf parallel programming in fortran. should give output:

hello image 1 out of 8 hello image 2 out of 8 hello image 3 out of 8 hello image 4 out of 8 hello image 5 out of 8 hello image 6 out of 8 hello image 7 out of 8 hello image 8 out of 8

but compiler giving output:

hello image 1 out of 1.

i use gfortran compiler command 

gfortran "codename" -fcoarray=single

i spent time solve "probably simple problem" couldn't solve it.

this output got when try -fcoarray=lib. that's why using -fcoarray=single because 1 can executed. should solve this? thank help;

/tmp/ccvnpvrc.o: in function `main__': hew.f08:(.text+0x62): undefined reference `_gfortran_caf_this_image' hew.f08:(.text+0xa8): undefined reference `_gfortran_caf_num_images' /tmp/ccvnpvrc.o: in function `main': hew.f08:(.text+0x175): undefined reference `_gfortran_caf_init' hew.f08:(.text+0x19f): undefined reference `_gfortran_caf_finalize' collect2: error: ld returned 1 exit status

even though, installed linuxbrew website of opencoarrays, still having same issue. brew doctor says there no problem @ when use line

gfortran hew.f08 -fcoarray=lib -lcaf_mpi

same error appears. should use package line? package should download? how download it? how use gfortran have executable file? (i'm using ubuntu)

i used 

ruby -e "$(curl -fssl https://raw.githubusercontent.com/linuxbrew/install/master/install)"

line install. then, used both of lines setting path;

path=/home/[username]/.linuxbrew/bin:$path path=/home/linuxbrew/.linuxbrew/bin:$path

now, when use line

gfortran hew.f08 -fcoarray=lib -lcaf_mpi

the output is:

/usr/bin/ld: cannot find -lcaf_mpi collect2: error: ld returned 1 exit status


Comments

Post a Comment

Popular posts from this blog

node.js - Node js - Trying to send POST request, but it is not loading javascript content -

i have been trying send post request website, , has not been loading full site. i guessing problem node js not loading javascript content, executing it. can see javascript in response, though never loads content javascript files producing in html. what mean is, doesn't execute javascript. how make node js code overcome this, , wait the full website load? have tried native code, , "request' module, both producing same errors. if helps, don't need native javascript. modules fine. some code have tried (request module): var options = { method: 'post', uri: 'https://url', formdata: { 'email': 'email', 'prize': '0', 'transactional': 'on' }, headers: { /* 'content-type': 'application/x-www-form-urlencoded' */ // set automatically } }; rp(options) .then(function (body) { console.log(body) }) .catch(function (err) { console.log(err) }); when fetch content...
Read more

javascript - Replicate keyboard event with html button -

i have tried few ways make happen. have javascript pinball game uses keyboard keys controls. converting application touch screen display. workaround, hoping overlay buttons when clicked simulate keyboard strokes. have done research , sounds should work. using jquery v3.2.1 here things have tried far... html element: <input type="button" class="coil"></input> $('.coil').trigger({type: 'keydown', which: 40, keycode: 40}); with this, not errors, nothing happens. var coilkey = $('body').keydown(function(e) { switch (e.keycode) { case 40: break;} }) $('.coil').click(coilkey); this 1 returns error in console... ((jquery.event.special[handleobj.origtype] || (intermediate value)).handle || handleobj.handler).apply not function below javascript game engine handles key listeners... addkeylistener: function (keyandlistener) { this.keylisteners.push(keyandlistener); }, // gi...
Read more

javascript - Web audio api 5.1 surround example not working in firefox -

i've been playing lott lately web audio api on both firefox , chrome. few days ago started experiment surround set. when trying surround audio in web audio api came notice example works fine in chrome v59 not in firefox v54. // create web audio api context var audioctx = new (window.audiocontext || window.webkitaudiocontext)(); audioctx.destination.channelinterpretation = 'discrete'; audioctx.destination.channelcountmode = 'explicit'; audioctx.destination.channelcount = 6; var oscillators = []; var merger = audioctx.createchannelmerger(6); console.log(audioctx.destination, merger); //merger.channelinterpretation = 'discrete'; //merger.channelcountmode = 'explicit'; //merger.channelcount = 6; var addoscilator = function(channel, frequency) { var oscillator = audioctx.createoscillator(); oscillator.frequency.value = frequency; // value in hertz oscillator.connect(merger,0,channel); oscillator.start(); oscillators.push(o...
Read more