From FPGA to Support Cloud to Cloud of FPGA: State of the Art

Table 5

Summary of FPGA resources as a service.

Works	FPGA virtualization level^1	Partial region support^2	Multitenancy^3	Sharing space^4	Elasticity of resources^5	Solved challenges^6
Byma et al. [75]	Resource level	Yes	Yes	No	Yes	C3; FPGA device selection (D7)
Fahmy et al. [78]	Node level	No	No	No	Yes	C3; FPGA device selection (D7)
Kirchgessner et al. [39]	Multinode	No	No	No	No	C3; FPGA platform selection (D7)
Najem et al. [76]	Resource level	Yes	No	No	No	C3; FPGA platform selection (D7)
Asiatici et al. [77]	Node level	Yes	Yes	No	Yes	C3; FPGA device selection (D7)
Kidane et al. [79]	Node level	No	Yes	No	Yes	C3; FPGA device selection (D7)
Dashtbani et al. [82, 83]	Multinode	No	Yes	No	No	C3; FPGA platform selection (D8)

¹FPGA virtualization level: referring to the level of FPGA virtualization. ²Partial region support: ability of the platform to support the partial reconfiguration. ³Multitenancy: ability of multi-FPGA to be used by different applications. ⁴Sharing space: ability of application designers to use many resources from different FPGA for one application. ⁵Elasticity of resources: amount of resources that can be dynamically increased or contracted. ⁶Solved challenge; indicates that the challenge is not fully solved and solved difficulties are listed.