public static int cudaDeviceGetP2PAttribute(int value[], int attr, int srcDevice, int dstDevice)
    {
        return checkResult(cudaDeviceGetP2PAttributeNative(value, attr, srcDevice, dstDevice));
    }
public static int cudaDeviceGetP2PAttribute ( int value [ ] , int attr , int srcDevice , int dstDevice ) { return checkResult ( cudaDeviceGetP2PAttributeNative ( value , attr , srcDevice , dstDevice ) ) ; }
Queries attributes of the link between two devices.<br>
<br>
Returns in *value the value of the requested attribute attrib of the
link between srcDevice and dstDevice. The supported attributes are:
<ul>
<li>CudaDevP2PAttrPerformanceRank: A relative value indicating the
performance of the link between two devices. Lower value means better
performance (0 being the value used for most performant link).
</li>
<li>CudaDevP2PAttrAccessSupported: 1 if peer access is enabled.</li>
<li>CudaDevP2PAttrNativeAtomicSupported: 1 if native atomic operations over
the link are supported.
</li>
</ul>
<br>
Returns ::cudaErrorInvalidDevice if srcDevice or dstDevice are not valid
or if they represent the same device.<br>
<br>
Returns ::cudaErrorInvalidValue if attrib is not valid or if value is
a null pointer.
<br>

@param value     Returned value of the requested attribute
@param attrib    The requested attribute of the link between srcDevice and dstDevice.
@param srcDevice The source device of the target link.
@param dstDevice The destination device of the target link.

@return cudaSuccess, cudaErrorInvalidDevice, cudaErrorInvalidValue

@see JCuda#cudaCtxEnablePeerAccess
@see JCuda#cudaCtxDisablePeerAccess
@see JCuda#cudaCtxCanAccessPeer