Visible to Intel only — GUID: GUID-01F0BFF5-554F-4419-9758-36AE1B9CBBA1
Visible to Intel only — GUID: GUID-01F0BFF5-554F-4419-9758-36AE1B9CBBA1
v?Add
Performs element by element addition of vector a and vector b.
Syntax
call vsadd( n, a, b, y )
call vsaddi(n, a, inca, b, incb, y, incy)
call vmsadd( n, a, b, y, mode )
call vmsaddi(n, a, inca, b, incb, y, incy, mode)
call vdadd( n, a, b, y )
call vdaddi(n, a, inca, b, incb, y, incy)
call vmdadd( n, a, b, y, mode )
call vmdaddi(n, a, inca, b, incb, y, incy, mode)
call vcadd( n, a, b, y )
call vcaddi(n, a, inca, b, incb, y, incy)
call vmcadd( n, a, b, y, mode )
call vmcaddi(n, a, inca, b, incb, y, incy, mode)
call vzadd( n, a, b, y )
call vzaddi(n, a, inca, b, incb, y, incy)
call vmzadd( n, a, b, y, mode )
call vmzaddi(n, a, inca, b, incb, y, incy, mode)
Include Files
- mkl_vml.f90
Input Parameters
Name |
Type |
Description |
---|---|---|
n |
INTEGER, INTENT(IN) |
Specifies the number of elements to be calculated. |
a, b |
DOUBLE PRECISION for vdadd, vmdadd COMPLEX for vcadd, vmcadd DOUBLE COMPLEX for vzadd, vmzadd REAL, INTENT(IN) for vsAdd, vmsAdd DOUBLE PRECISION, INTENT(IN) for vdadd, vmdadd COMPLEX, INTENT(IN) for vcadd, vmcadd DOUBLE COMPLEX, INTENT(IN) for vzadd, vmzadd |
Arrays that specify the input vectors a and b. |
inca, incb, incy |
INTEGER, INTENT(IN) |
Specifies increments for the elements of a, b, and y. |
mode |
INTEGER(KIND=8), INTENT(IN) |
Overrides global VM mode setting for this function call. See vmlSetMode for possible values and their description. |
Output Parameters
Name |
Type |
Description |
---|---|---|
y |
DOUBLE PRECISION for vdadd, vmdadd COMPLEX, for vcadd, vmcadd DOUBLE COMPLEX for vzadd, vmzadd REAL, INTENT(OUT) for vsAdd, vmsAdd DOUBLE PRECISION, INTENT(OUT) for vdadd, vmdadd COMPLEX, INTENT(OUT) for vcadd, vmcadd DOUBLE COMPLEX, INTENT(OUT) for vzadd, vmzadd |
Array that specifies the output vector y. |
Description
The v?Add function performs element by element addition of vector a and vector b.
Argument 1 | Argument 2 | Result | Exception |
---|---|---|---|
+0 | +0 | +0 | |
+0 | -0 | +0 | |
-0 | +0 | +0 | |
-0 | -0 | -0 | |
+∞ | +∞ | +∞ | |
+∞ | -∞ | QNAN | INVALID |
-∞ | +∞ | QNAN | INVALID |
-∞ | -∞ | -∞ | |
SNAN | any value | QNAN | INVALID |
any value | SNAN | QNAN | INVALID |
QNAN | non-SNAN | QNAN | |
non-SNAN | QNAN | QNAN |
Specifications for special values of the complex functions are defined according to the following formula
Add(x1+i*y1,x2+i*y2) = (x1+x2) + i*(y1+y2)
Overflow in a complex function occurs (supported in the HA/LA accuracy modes only) when all RE(x), RE(y), IM(x), IM(y) arguments are finite numbers, but the real or imaginary part of the computed result is so large that it does not fit the target precision. In this case, the function returns ∞ in that part of the result, raises the OVERFLOW exception, and sets the VM Error Status to VML_STATUS_OVERFLOW (overriding any possible VML_STATUS_ACCURACYWARNING status).