Difference between revisions of "GPU610/DPS915 Student Resources"
(→segmvhttp://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp?topic=%2Fcom.ibm.xlcpp8a.doc%2Fproguide%2Fref%2Fblaslib.htm) |
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void cblas_sgemv (const enum CBLAS_ORDER order, const enum CBLAS_TRANSPOSE TransA, const int M, const int N, const float alpha, const float * A, const int lda, const float * x, const int incx, const float beta, float * y, const int incy)<ref>http://www.gnu.org/software/gsl/manual/html_node/Level-2-CBLAS-Functions.html</ref> | void cblas_sgemv (const enum CBLAS_ORDER order, const enum CBLAS_TRANSPOSE TransA, const int M, const int N, const float alpha, const float * A, const int lda, const float * x, const int incx, const float beta, float * y, const int incy)<ref>http://www.gnu.org/software/gsl/manual/html_node/Level-2-CBLAS-Functions.html</ref> | ||
| − | ''''' | + | '''''order''''' |
| + | :Whether matrices are row major order (C-Style) for column major order (Fortran-style). One of enum CblasRowMajor or CblasColMajor. | ||
| + | '''''TransA''''' | ||
| + | :Whether to transpose matrix A. One of enum CblasNoTrans, CBlasTrans. | ||
| + | |||
| + | '''''M''''' | ||
:represents: | :represents: | ||
::the number of rows in input matrix a | ::the number of rows in input matrix a | ||
| Line 20: | Line 25: | ||
:The number of rows must be greater than or equal to zero, and less than the leading dimension of the matrix a (specified in lda) | :The number of rows must be greater than or equal to zero, and less than the leading dimension of the matrix a (specified in lda) | ||
| − | ''''' | + | '''''N''''' |
| − | |||
:represents: | :represents: | ||
::the number of columns in input matrix a | ::the number of columns in input matrix a | ||
| Line 29: | Line 33: | ||
'''''alpha''''' | '''''alpha''''' | ||
| − | |||
:is the scaling constant for matrix a | :is the scaling constant for matrix a | ||
| − | ''''' | + | '''''A''''' |
| − | |||
:is the input matrix of float (for sgemv) or double (for dgemv) values | :is the input matrix of float (for sgemv) or double (for dgemv) values | ||
'''''lda''''' | '''''lda''''' | ||
| − | |||
:is the leading dimension of the array specified by a. The leading dimension must be greater than zero. The leading dimension must be greater than or equal to 1 and greater than or equal to the value specified in m. | :is the leading dimension of the array specified by a. The leading dimension must be greater than zero. The leading dimension must be greater than or equal to 1 and greater than or equal to the value specified in m. | ||
'''''x''''' | '''''x''''' | ||
| − | |||
:is the input vector of float (for sgemv) or double (for dgemv) values. | :is the input vector of float (for sgemv) or double (for dgemv) values. | ||
'''''incx''''' | '''''incx''''' | ||
| − | |||
:is the stride for vector x. It can have any value. | :is the stride for vector x. It can have any value. | ||
'''''beta''''' | '''''beta''''' | ||
| − | |||
:is the scaling constant for vector y | :is the scaling constant for vector y | ||
'''''y''''' | '''''y''''' | ||
| − | |||
:is the output vector of float (for sgemv) or double (for dgemv) values. | :is the output vector of float (for sgemv) or double (for dgemv) values. | ||
'''''incy''''' | '''''incy''''' | ||
| − | |||
:is the stride for vector y. It must not be zero. | :is the stride for vector y. It must not be zero. | ||
Revision as of 14:53, 20 September 2012
GPU610/DPS915 | Student List | Group and Project Index | Student Resources | Glossary
Contents
Student Resources
The purpose of this page is to share useful information that can help groups with their game projects.
BLAS Documentation --- This section is a work in progress -- please do not edit [jboelen]
Note: This information applies to the gsl_cblas library
There are 2 main functions to use
segmv<ref>http://publib.boulder.ibm.com/infocenter/comphelp/v8v101/index.jsp?topic=%2Fcom.ibm.xlcpp8a.doc%2Fproguide%2Fref%2Fblaslib.htm</ref>
void cblas_sgemv (const enum CBLAS_ORDER order, const enum CBLAS_TRANSPOSE TransA, const int M, const int N, const float alpha, const float * A, const int lda, const float * x, const int incx, const float beta, float * y, const int incy)<ref>http://www.gnu.org/software/gsl/manual/html_node/Level-2-CBLAS-Functions.html</ref>
order
- Whether matrices are row major order (C-Style) for column major order (Fortran-style). One of enum CblasRowMajor or CblasColMajor.
TransA
- Whether to transpose matrix A. One of enum CblasNoTrans, CBlasTrans.
M
- represents:
- the number of rows in input matrix a
- the length of vector y, if 'N' or 'n' is used for the trans parameter
- the length of vector x, if 'T' or 't' is used for the trans parameter
- the number of rows in input matrix a
- The number of rows must be greater than or equal to zero, and less than the leading dimension of the matrix a (specified in lda)
N
- represents:
- the number of columns in input matrix a
- the length of vector x, if 'N' or 'n' is used for the trans parameter
- the length of vector y, if 'T' or 't' is used for the trans parameter
- the number of columns in input matrix a
- The number of columns must be greater than or equal to zero.
alpha
- is the scaling constant for matrix a
A
- is the input matrix of float (for sgemv) or double (for dgemv) values
lda
- is the leading dimension of the array specified by a. The leading dimension must be greater than zero. The leading dimension must be greater than or equal to 1 and greater than or equal to the value specified in m.
x
- is the input vector of float (for sgemv) or double (for dgemv) values.
incx
- is the stride for vector x. It can have any value.
beta
- is the scaling constant for vector y
y
- is the output vector of float (for sgemv) or double (for dgemv) values.
incy
- is the stride for vector y. It must not be zero.
segmm
https://scs.senecac.on.ca/~gpu610/pages/content/lines.html
Getting Started on Mac
http://developer.download.nvidia.com/compute/DevZone/docs/html/C/doc/CUDA_Getting_Started_Mac.pdf
http://developer.nvidia.com/cuda/cuda-downloads
Troubleshooting
Problem with CUDA driver version 5.0.24 on MacBook Pro 2012 Fix
References
<references/>
