Pycuda string matching
I am trying to compare two string using GPU by means of pycuda. This has to be then used for millions of files, where a target word has to be searched in all those files. I am new to cuda programming and have only a basic overview of C. The idea of the code is to check if the strings match and if it does it should return an int value{0,1}.
import numpy
import pycuda.autoinit
import pycuda.driver as cuda
import pycuda.driver as drv
from pycuda.compiler import SourceModule
mod = SourceModule("""
__global__ void evaluateTwoWords(int *out,char *a, char *b)
{
int i = blockIdx.x * blockDim.x +threadIdx.x;
if(a[i] == b[i]){ out[i] = 1; }
else{ out[i] = 0; }
}
""")
cuda_db1=mod.get_function("evaluateTwoWords")
file_terms=numpy.array("hey",dtype=str)
bin_terms=numpy.array("hello",dtype=str)
dest=numpy.array(0,dtype=int)
func=mod.get_function("evaluateTwoWords")
func(drv.Out(dest),drv.In(file_terms),drv.In(bin_terms),block=(400,1,1),grid=(1,1))
print(dest)
The output result I am getting is 4294967297. What went wrong?
python python-3.x cuda
asked 12 mins ago
SoorajSooraj
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I am trying to compare two string using GPU by means of pycuda. This has to be then used for millions of files, where a target word has to be searched in all those files. I am new to cuda programming and have only a basic overview of C. The idea of the code is to check if the strings match and if it does it should return an int value{0,1}.
import numpy
import pycuda.autoinit
import pycuda.driver as cuda
import pycuda.driver as drv
from pycuda.compiler import SourceModule
mod = SourceModule("""
__global__ void evaluateTwoWords(int *out,char *a, char *b)
{
int i = blockIdx.x * blockDim.x +threadIdx.x;
if(a[i] == b[i]){ out[i] = 1; }
else{ out[i] = 0; }
}
""")
cuda_db1=mod.get_function("evaluateTwoWords")
file_terms=numpy.array("hey",dtype=str)
bin_terms=numpy.array("hello",dtype=str)
dest=numpy.array(0,dtype=int)
func=mod.get_function("evaluateTwoWords")
func(drv.Out(dest),drv.In(file_terms),drv.In(bin_terms),block=(400,1,1),grid=(1,1))
print(dest)
The output result I am getting is 4294967297. What went wrong?
python python-3.x cuda
asked 12 mins ago
SoorajSooraj
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I am trying to compare two string using GPU by means of pycuda. This has to be then used for millions of files, where a target word has to be searched in all those files. I am new to cuda programming and have only a basic overview of C. The idea of the code is to check if the strings match and if it does it should return an int value{0,1}.
import numpy
import pycuda.autoinit
import pycuda.driver as cuda
import pycuda.driver as drv
from pycuda.compiler import SourceModule
mod = SourceModule("""
__global__ void evaluateTwoWords(int *out,char *a, char *b)
{
int i = blockIdx.x * blockDim.x +threadIdx.x;
if(a[i] == b[i]){ out[i] = 1; }
else{ out[i] = 0; }
}
""")
cuda_db1=mod.get_function("evaluateTwoWords")
file_terms=numpy.array("hey",dtype=str)
bin_terms=numpy.array("hello",dtype=str)
dest=numpy.array(0,dtype=int)
func=mod.get_function("evaluateTwoWords")
func(drv.Out(dest),drv.In(file_terms),drv.In(bin_terms),block=(400,1,1),grid=(1,1))
print(dest)
The output result I am getting is 4294967297. What went wrong?
python python-3.x cuda
asked 12 mins ago
SoorajSooraj
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I am trying to compare two string using GPU by means of pycuda. This has to be then used for millions of files, where a target word has to be searched in all those files. I am new to cuda programming and have only a basic overview of C. The idea of the code is to check if the strings match and if it does it should return an int value{0,1}.
import numpy
import pycuda.autoinit
import pycuda.driver as cuda
import pycuda.driver as drv
from pycuda.compiler import SourceModule
mod = SourceModule("""
__global__ void evaluateTwoWords(int *out,char *a, char *b)
{
int i = blockIdx.x * blockDim.x +threadIdx.x;
if(a[i] == b[i]){ out[i] = 1; }
else{ out[i] = 0; }
}
""")
cuda_db1=mod.get_function("evaluateTwoWords")
file_terms=numpy.array("hey",dtype=str)
bin_terms=numpy.array("hello",dtype=str)
dest=numpy.array(0,dtype=int)
func=mod.get_function("evaluateTwoWords")
func(drv.Out(dest),drv.In(file_terms),drv.In(bin_terms),block=(400,1,1),grid=(1,1))
print(dest)
The output result I am getting is 4294967297. What went wrong?
python python-3.x cuda
python python-3.x cuda
asked 12 mins ago
SoorajSooraj
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
SoorajSooraj
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
SoorajSooraj
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 12 mins ago
SoorajSooraj
11
asked 12 mins ago
SoorajSooraj
11
11
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Sooraj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["\$", "\$"]]);
});
});
}, "mathjax-editing");
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "196"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sooraj is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f211305%2fpycuda-string-matching%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Sooraj is a new contributor. Be nice, and check out our Code of Conduct.
Sooraj is a new contributor. Be nice, and check out our Code of Conduct.
Sooraj is a new contributor. Be nice, and check out our Code of Conduct.
Sooraj is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Code Review Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fcodereview.stackexchange.com%2fquestions%2f211305%2fpycuda-string-matching%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
