kuqcd_load_gaugefield

h_gauge

void *

Data of the gauge field

Input

param

KuQCDGaugeParam *

Configuration options of the gauge field. For details, see Table 1.

Input

lat

unsigned int [4]

Number of lattices in the x, y, z, and t directions

halo_depth

int

Halo region size. For the spinor field, the value is 0. For the gauge field, if RHMC is performed, the value is 3; if only inverter is performed, the value is 0.

od

KuQCDRankOrder

Process order. The value can be KUQCD_XYZT_ORDER (fast change in the x direction) or KUQCD_TZYX_ORDER (fast change in the t direction).

site_subset

KuQCDSiteSubset

Sublattice. The value can be KUQCD_EVEN, KUQCD_ODD, or KUQCD_ALL.

gauge_order

KuQCDGaugeOrder

Data order. The value can be KUQCD_NORMAL_ORDER ((even-odd)-y-z-y-x-Ns-3-(real-imag) for the spinor field; (even-odd)-t-z-y-x-direction-col-row-(real-imag) for the gauge field) or KUQCD_BATCH_ORDER ((even-odd)-y-z-y-(x/Nbatch)-Ns-3-(real*Nbatch-imag*Nbatch) for the spinor field; (even-odd)-t-z-y-(x/Nbatch)-direction-col-row-(real*Nbatch-imag*Nbatch) for the gauge field).

prec

KuQCDPrecision

Precision, which can be KUQCD_SINGLE_PRECISION or KUQCD_DOUBLE_PRECISION.

link_type

KuQCDLinkType

Link type. The options are as follows:

• KUQCD_WILSON_LINK (not supported currently)
• KUQCD_FAT_LINK
• KUQCD_LONG_LINK

recon

KuQCDReconstructType

SU(3) matrix compression mode. The options are as follows:

• KUQCD_GAUGE_RECON_NO
• KUQCD_GAUGE_RECON_U14 (not supported currently)
• KUQCD_GAUGE_RECON_12 (not supported currently)
• KUQCD_GAUGE_RECON_8 (not supported currently)

KUQCD_SUCCESS

int

Successful execution

KUQCD_ERR_INVALID_PARAM

int

Invalid parameter

KUQCD_ERR_UNSUPPORTED

int

Unsupported option

KUQCD_ERR_NULL_POINTER

int

Null pointer